Corning (GLW) 10-Q 30 Jul 15 2015 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 15, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	CORNING INC /NY
Trading Symbol	GLW
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		1,225,935,145
Amendment Flag	false
Entity Central Index Key	24,741
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net sales	$ 2,343	$ 2,482	$ 4,608	$ 4,771
Cost of sales	1,368	1,450	2,704	2,804
Gross margin	975	1,032	1,904	1,967
Operating expenses:
Selling, general and administrative expenses	337	322	653	719
Research, development and engineering expenses	191	208	380	406
Amortization of purchased intangibles	16	8	28	16
Restructuring, impairment and other charges		34		51
Operating income	431	460	843	775
Equity in earnings of affiliated companies	62	62	156	148
Interest income	5	4	10	16
Interest expense	(33)	(30)	(63)	(60)
Transaction-related gain, net				74
Foreign currency hedge gain (loss), net	164	(137)	206	(143)
Other (expense) income, net	(23)	(18)	(53)	12
Income before income taxes	606	341	1,099	822
Provision for income taxes (Note 4)	(110)	(172)	(196)	(352)
Net income attributable to Corning Incorporated	$ 496	$ 169	$ 903	$ 470
Earnings per common share attributable to Corning Incorporated:
Basic (Note 5) (in Dollars per share)	$ 0.38	$ 0.11	$ 0.68	$ 0.32
Diluted (Note 5) (in Dollars per share)	0.36	0.11	0.65	0.32
Dividends declared per common share (1) (in Dollars per share)	$ 0.12	$ 0.10	$ 0.12	$ 0.20

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net income attributable to Corning Incorporated	$ 496	$ 169	$ 903	$ 470
Foreign currency translation adjustments and other	(40)	269	(296)	137
Net unrealized (losses) gains on investments		(9)	1	4
Unamortized gains (losses) and prior service credits (costs) for postretirement benefit plans	5	(6)	6	3
Net unrealized gains (losses) on designated hedges		1	5	(3)
Other comprehensive (loss) income, net of tax (Note 15)	(35)	255	(284)	141
Comprehensive income attributable to Corning Incorporated	$ 461	$ 424	$ 619	$ 611

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 4,968	$ 5,309
Short-term investments, at fair value (Note 6)	505	759
Total cash, cash equivalents and short-term investments	5,473	6,068
Trade accounts receivable, net of doubtful accounts and allowances - $46 and $47	1,545	1,501
Inventories, net of inventory reserves - $125 and $127 (Note 7)	1,385	1,322
Deferred income taxes (Note 4)	291	248
Other current assets	1,174	1,099
Total current assets	9,868	10,238
Investments (Note 8)	1,844	1,801
Property, plant and equipment, net of accumulated depreciation - $8,784 and $8,332 (Note 10)	12,669	12,766
Goodwill, net (Note 11)	1,343	1,150
Other intangible assets, net (Note 11)	700	497
Deferred income taxes (Note 4)	1,808	1,889
Other assets	1,656	1,722
Total Assets	29,888	30,063
Current liabilities:
Current portion of long-term debt (Note 3)	102	36
Accounts payable	930	997
Other accrued liabilities (Note 2)	990	1,291
Total current liabilities	2,022	2,324
Long-term debt (Note 3)	3,910	3,227
Postretirement benefits other than pensions (Note 12)	781	814
Other liabilities (Note 2)	2,120	2,046
Total liabilities	$ 8,833	$ 8,411
Commitments and contingencies (Note 2)
Shareholders’ equity (Note 15):
Convertible preferred stock, Series A – Par value $100 per share; Shares authorized 3,100; Shares issued: 2,300	$ 2,300	$ 2,300
Common stock – Par value $0.50 per share; Shares authorized 3.8 billion; Shares issued: 1,680 million and 1,672 million	840	836
Additional paid-in capital – common stock	13,578	13,456
Retained earnings	13,727	13,021
Treasury stock, at cost; Shares held: 449 million and 398 million	(7,871)	(6,727)
Accumulated other comprehensive loss	(1,591)	(1,307)
Total Corning Incorporated shareholders’ equity	20,983	21,579
Noncontrolling interests	72	73
Total equity	21,055	21,652
Total Liabilities and Equity	$ 29,888	$ 30,063

Consolidated Balance Sheets (U5

Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Doubtful accounts and allowances (in Dollars)	$ 46	$ 47
Inventory reserves (in Dollars)	125	127
Accumulated depreciation (in Dollars)	$ 8,784	$ 8,332
Convertible preferred stock, par value (in Dollars per share)	$ 100	$ 100
Convertible preferred stock, shares authorized	3,100	3,100
Convertible preferred stock, shares issued	2,300	2,300
Common stock par value (in Dollars per share)	$ 0.50	$ 0.50
Common stock, shares authorized	3,800,000,000	3,800,000,000
Common stock, shares issued	1,680,000,000	1,672,000,000
Treasury stock, at cost, shares held	449,000,000	398,000,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities:
Net income		$ 903	$ 470
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		562	583
Amortization of purchased intangibles		28	16
Restructuring, impairment and other charges			51
Stock compensation charges		25	28
Equity in earnings of affiliated companies		(156)	(148)
Dividends received from affiliated companies		95	1,641
Deferred tax expense provision		31	103
Restructuring payments		(23)	(17)
Employee benefit payments in excess of expense		(8)	(28)
(Gains) losses on foreign currency hedges related to translated earnings		(191)	139
Unrealized translation losses (gains) on transactions		236	(60)
Changes in certain working capital items:
Trade accounts receivable		(25)	(11)
Inventories		(54)	13
Other current assets		(100)	28
Accounts payable and other current liabilities		(191)	(384)
Other, net		16	56
Net cash provided by operating activities		1,148	2,480
Cash Flows from Investing Activities:
Capital expenditures		(641)	(478)
Acquisitions of business, net of cash (paid) received		(531)	66
Investment in unconsolidated entities		(33)	(109)
Proceeds from loan repayments from unconsolidated entities		6	11
Short-term investments – acquisitions		(570)	(803)
Short-term investments – liquidations		825	574
Realized gains on foreign currency hedges related to translated earnings		321	152
Other, net			4
Net cash used in investing activities		(623)	(583)
Cash Flows from Financing Activities:
Net repayments of short-term borrowings and current portion of long-term debt			(42)
Principal payments under capital lease obligations		(1)	(1)
Proceeds from issuance of short-term debt		2	17
Proceeds from issuance of long-term debt		745
Proceeds from issuance of commercial paper			416
Proceeds from issuance of preferred stock (1)	[1]		400
Payments from settlement of interest rate swap arrangements		(10)
Proceeds from the exercise of stock options		98	84
Repurchases of common stock for treasury		(1,093)	(2,076)
Dividends paid		(350)	(287)
Net cash used in financing activities		(609)	(1,489)
Effect of exchange rates on cash		(257)	6
Net (decrease) increase in cash and cash equivalents		(341)	414
Cash and cash equivalents at beginning of period		5,309	4,704
Cash and cash equivalents at end of period		$ 4,968	$ 5,118
[1]	In the first quarter of 2014, Corning issued 1,900 shares of Preferred Stock to Samsung Display Co., Ltd. in connection with the acquisition of their equity interests in Samsung Corning Precision Materials Co., Ltd. ("Samsung Corning Precision Materials"). Corning also issued to Samsung Display an additional 400 shares of Preferred Stock at closing, for an issue price of $400 million in cash.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Jun. 30, 2015
Supplemental Cash Flow Elements [Abstract]
Cash Flow, Supplemental Disclosures [Text Block]	(1) In the first quarter of 2014, Corning issued 1,900 shares of Preferred Stock to Samsung Display Co., Ltd. in connection with the acquisition of their equity interests in Samsung Corning Precision Materials Co., Ltd. (“Samsung Corning Precision Materials”). Corning also issued to Samsung Display an additional 400 shares of Preferred Stock at closing, for an issue price of $400 million in cash.

Note 1 - Significant Accounting

Note 1 - Significant Accounting Policies	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	1. Significant Accounting Policies Basis of Presentation In these notes, the terms “Corning,” “Company,” “we,” “us” or “our” mean Corning Incorporated and subsidiary companies. The accompanying unaudited consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) for interim financial information. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been omitted or condensed. These interim consolidated financial statements should be read in conjunction with Corning’s consolidated financial statements and notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 Form 10-K”). The unaudited consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary for a fair statement of the results of operations, financial position and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. The results for interim periods are not necessarily indicative of results which may be expected for any other interim period or for the full year. Certain prior year amounts have been reclassified to conform to the current-year presentation. These reclassifications had no impact on our results of operations, financial position, or changes in shareholders’ equity. New Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. (“ASU”) 2014-09, Revenue from Contracts with Customers, as a new Topic, Accounting Standards Codification (“ASC”) Topic 606. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU is effective for annual periods beginning after December 15, 2016, including interim periods within that reporting period, and shall be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. In July 2015, the FASB approved a one-year deferral of the effective date of ASU 2014-09, Revenue from Contracts with Customers. We can elect to adopt the provisions of ASU 2014-09 for annual periods beginning after December 15, 2017, including interim periods within that reporting period. The FASB also agreed to allow entities to choose to adopt the standard as of the original effective date.

Note 2 - Commitments, Contingen

Note 2 - Commitments, Contingencies, and Guarantees	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	2. Commitments, Contingencies and Guarantees Pittsburgh Corning Corporation and Asbestos Litigation. PCC Plan of Reorganization Corning, with other relevant parties, has been involved in ongoing efforts to develop a Plan of Reorganization that would resolve the concerns and objections of the relevant courts and parties. On November 12, 2013, the Bankruptcy Court issued a decision finally confirming an Amended PCC Plan of Reorganization (the “Amended PCC Plan” or the “Plan”). On September 30, 2014, the United States District Court for the Western District of Pennsylvania (the “District Court”) affirmed the Bankruptcy Court’s decision confirming the Amended PCC Plan. On October 30, 2014, one of the objectors to the Plan appealed the District Court’s affirmation of the Plan to the United States Court of Appeals for the Third Circuit (the “Third Circuit Court of Appeals”). It will likely take many months for the Third Circuit Court of Appeals to render its decision. Under the Plan as affirmed by the Bankruptcy Court and affirmed by the District Court, Corning is required to contribute its equity interests in PCC and Pittsburgh Corning Europe N.V. (“PCE”), a Belgian corporation, and to contribute $290 million in a fixed series of payments, recorded at present value. Corning has the option to use its shares rather than cash to make these payments, but the liability is fixed by dollar value and not the number of shares. The Plan requires Corning to make: (1) one payment of $70 million one year from the date the Plan becomes effective and certain conditions are met; and (2) five additional payments of $35 million, $50 million, $35 million, $50 million, and $50 million, respectively, on each of the five subsequent anniversaries of the first payment, the final payment of which is subject to reduction based on the application of credits under certain circumstances. Non-PCC Asbestos Litigation In addition to the claims against Corning related to its ownership interest in PCC, Corning is also the defendant in approximately 9,700 other cases (approximately 37,300 claims) alleging injuries from asbestos related to its Corhart business and similar amounts of monetary damages per case. When PCC filed for bankruptcy protection, the Court granted a preliminary injunction to suspend all asbestos cases against PCC, PPG and Corning – including these non-PCC asbestos cases (the “stay”). The stay remains in place as of the date of this filing. Under the Bankruptcy Court’s order confirming the Amended PCC Plan, the stay will remain in place until the Amended PCC Plan is finally affirmed by the District Court and the Third Circuit Court of Appeals. These non-PCC asbestos cases have been covered by insurance without material impact to Corning to date. As of June 30, 2015, Corning had received for these cases approximately $19 million in insurance payments related to those claims. If and when the Bankruptcy Court’s confirmation of the Amended PCC Plan is finally affirmed, these non-PCC asbestos claims would be allowed to proceed against Corning. In prior periods, Corning recorded in its estimated asbestos litigation liability an additional $150 million for these and any future non-PCC asbestos cases. Total Estimated Liability for the Amended PCC Plan and the Non-PCC Asbestos Claims The liability for the Amended PCC Plan and the non-PCC asbestos claims was estimated to be $685 million at June 30, 2015, compared with an estimate of liability of $681 million at December 31, 2014. The $685 million liability is comprised of $245 million of the fair value of PCE, $290 million for the fixed series of payments, and $150 million for the non-PCC asbestos litigation, all referenced in the preceding paragraphs. With respect to the PCE liability, at June 30, 2015 and December 31, 2014, the fair value of $245 million and $241 million of our interest in PCE significantly exceeded its carrying value of $151 million and $162 million, respectively. There have been no impairment indicators for our investment in PCE and we continue to recognize equity earnings of this affiliate. At the time Corning recorded this liability, it determined it lacked the ability to recover the carrying amount of its investment in PCC and its investment was other than temporarily impaired. As a result, we reduced our investment in PCC to zero. As the fair value in PCE is significantly higher than book value, management believes that the risk of an additional loss in an amount materially higher than the fair value of the liability is remote. With respect to the liability for other asbestos litigation, the liability for non-PCC claims was estimated based upon industry data for asbestos claims since Corning does not have recent claim history due to the injunction issued by the Bankruptcy Court. The estimated liability represents the undiscounted projection of claims and related legal fees over the next 20 years. The amount may need to be adjusted in future periods as more data becomes available; however, we cannot estimate any additional losses at this time. For the three months ended June 30, 2015 and 2014, Corning recorded asbestos litigation expense of $2 million and $4 million, respectively. For the six months ended June 30, 2015 and 2014, Corning recorded asbestos litigation expense of $3 million and $6 million, respectively. The entire obligation is classified as a non-current liability, as installment payments for the cash portion of the obligation are not planned to commence until more than 12 months after the Amended PCC Plan becomes effective and the PCE portion of the obligation will be fulfilled through the direct contribution of Corning’s investment in PCE (currently recorded as a non-current other equity method investment). Non-PCC Asbestos Cases Insurance Litigation Several of Corning’s insurers have commenced litigation in state courts for a declaration of the rights and obligations of the parties under insurance policies affecting the non-PCC asbestos cases, including rights that may be affected by the potential resolutions described above. Corning is vigorously contesting these cases, and management is unable to predict the outcome of the litigation. Other Commitments and Contingencies We are required, at the time a guarantee is issued, to recognize a liability for the fair value or market value of the obligation it assumes. In the normal course of our business, we do not routinely provide significant third-party guarantees. Generally, any third party guarantees provided by Corning are limited to certain financial guarantees including stand-by letters of credit and performance bonds, and the incurrence of contingent liabilities in the form of purchase price adjustments related to attainment of milestones. When provided, these guarantees have various terms, and none of these guarantees are individually significant. As of June 30, 2015 and December 31, 2014, contingent guarantees totaled a notional value of $174 million and $150 million, respectively. We believe a significant majority of these contingent guarantees will expire without being funded. We also were contingently liable for purchase obligations of $311 million and $287 million, at June 30, 2015 and December 31, 2014, respectively. Product warranty liability accruals were considered insignificant at June 30, 2015 and December 31, 2014. Corning is a defendant in various lawsuits, including environmental, product-related suits, the Dow Corning and PCC matters, and is subject to various claims that arise in the normal course of business. In the opinion of management, the likelihood that the ultimate disposition of these matters will have a material adverse effect on Corning’s consolidated financial position, liquidity, or results of operations, is remote. Other than certain asbestos related claims, there are no other material loss contingencies related to litigation. Corning has been named by the Environmental Protection Agency (“the Agency”) under the Superfund Act, or by state governments under similar state laws, as a potentially responsible party for 15 active hazardous waste sites. Under the Superfund Act, all parties who may have contributed any waste to a hazardous waste site, identified by the Agency, are jointly and severally liable for the cost of cleanup unless the Agency agrees otherwise. It is Corning’s policy to accrue for its estimated liability related to Superfund sites and other environmental liabilities related to property owned by Corning based on expert analysis and continual monitoring by both internal and external consultants. At June 30, 2015 and December 31, 2014, Corning had accrued approximately $41 million (undiscounted) and $43 million (undiscounted), respectively, for the estimated liability for environmental cleanup and related litigation. Based upon the information developed to date, management believes that the accrued reserve is a reasonable estimate of the Company’s liability and that the risk of an additional loss in an amount materially higher than that accrued is remote. The ability of certain subsidiaries and affiliated companies to transfer funds is limited by provisions of foreign government regulations, affiliate agreements and certain loan agreements. At June 30, 2015, the amount of equity subject to such restrictions for consolidated subsidiaries and affiliated companies was not significant. While this amount is legally restricted, it does not result in operational difficulties since we have generally permitted subsidiaries to retain a majority of equity to support their growth programs.

Note 3 - Debt

Note 3 - Debt	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	3. Debt Based on borrowing rates currently available to us for loans with similar terms and maturities, the fair value of long-term debt was $4.2 billion at June 30, 2015 and $3.6 billion at December 31, 2014, compared to recorded book values of $3.9 billion at June 30, 2015 and $3.2 billion at December 31, 2014. The Company measures the fair value of its long-term debt using Level 2 inputs based primarily on current market yields for its existing debt traded in the secondary market. Debt Issuances 2015 In the second quarter of 2015, we issued $375 million of 1.50% senior unsecured notes that mature on May 8, 2018 and $375 million of 2.90% senior unsecured notes that mature on May 15, 2022. The net proceeds of $745 million will be used for general corporate purposes. We can redeem these debentures at any time, subject to certain stipulations.

Note 4 - Income Taxes

Note 4 - Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	4. Income Taxes Our provision for income taxes and the related effective income tax rates were as follows (in millions): Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Provision for income taxes $ (110) $ (172) $ (196) $ (352) Effective tax rate 18.2% 50.4% 17.8% 42.8% For the three and six months ended June 30, 2015, the effective income tax rate differed from the U.S. statutory rate of 35% primarily due to the following benefits: · Rate differences on income (loss) of consolidated foreign companies, including the benefit of excess foreign tax credits resulting from a taxable intercompany loan made to the U.S. and the repatriation of a small portion of high-tax foreign current year earnings; and · The impact of equity in earnings of nonconsolidated affiliates reported in the financials, net of tax. For the three and six months ended June 30, 2014, the effective income tax rate differed from the U.S. statutory rate of 35% primarily due to the following benefits: · Rate differences on income (loss) of consolidated foreign companies, including the benefit of excess foreign tax credits resulting from a taxable intercompany loan made to the U.S.; · The impact of equity in earnings of nonconsolidated affiliates reported in the financials, net of tax; and · Tax incentives in foreign jurisdictions, primarily Taiwan. These benefits were more than offset by discrete tax charges of: 1) $102 million related to South Korean withholding tax on a dividend paid by Samsung Corning Precision Materials to Corning wholly owned foreign subsidiaries for the six months ended June 30, 2014; and 2) $135 million and $146 million attributable to a change in judgment on the realizability of certain foreign deferred tax assets for the three and six months ended June 30, 2014, respectively. Corning’s subsidiary in Taiwan is operating under tax holiday arrangements. The benefit of the arrangement phases out through 2018. The impact of the tax holiday on our effective tax rate is a reduction in the rate of 0.4 and 1.4 percentage points for the three months ended June 30, 2015 and 2014, respectively. The impact of the tax holiday on our effective tax rate is a reduction in the rate of 0.4 and 1.3 for the six months ended June 30, 2015 and 2014, respectively. Corning continues to indefinitely reinvest substantially all of its foreign earnings, with the exception of approximately $6 million of current earnings in 2015 that have a net tax benefit associated with their repatriation. Our current analysis indicates that we have sufficient U.S. liquidity, including borrowing capacity, to fund foreseeable U.S. cash needs without requiring the repatriation of foreign cash. One time or unusual items that may impact our ability or intent to keep our foreign earnings and cash indefinitely reinvested include significant U.S. acquisitions, stock repurchases, shareholder dividends, changes in tax laws or the development of tax planning ideas that allow us to repatriate earnings at little or no tax cost or with a tax benefit, and/or a change in our circumstances or economic conditions that negatively impact our ability to borrow or otherwise fund U.S. needs from existing U.S. sources. While it remains impracticable to calculate the tax cost of repatriating our total unremitted foreign earnings, such cost could be material to the results of operations of Corning in a particular period. While we expect the amount of unrecognized tax benefits to change in the next 12 months, we do not expect the change to have a significant impact on the results of operations or our financial position.

Note 5 - Earnings Per Common Sh

Note 5 - Earnings Per Common Share	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	5. Earnings per Common Share The following table sets forth the computation of basic and diluted earnings per common share (in millions, except per share amounts): Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Net income attributable to Corning Incorporated $ 496 $ 169 $ 903 $ 470 Less: Series A convertible preferred stock dividend 24 24 49 45 Net income available to common stockholders - basic 472 145 854 425 Plus: Series A convertible preferred stock dividend 24 49 Net income available to common stockholders - diluted $ 496 $ 145 $ 903 $ 425 Weighted-average common shares outstanding - basic 1,246 1,302 1,257 1,331 Effect of dilutive securities: Stock options and other dilutive securities 10 13 11 12 Series A convertible preferred stock 115 115 Weighted-average common shares outstanding - diluted 1,371 1,315 1,383 1,343 Basic earnings per common share $ 0.38 $ 0.11 $ 0.68 $ 0.32 Diluted earnings per common share $ 0.36 $ 0.11 $ 0.65 $ 0.32 Antidilutive potential shares excluded from diluted earnings per common share: Series A convertible preferred stock 115 106 Employee stock options and awards 20 20 17 24 Accelerated share repurchase forward contract 6 Total 20 135 17 136

Note 6 - Available-for-Sale Inv

Note 6 - Available-for-Sale Investments	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	6. Available-for-Sale Investments The following is a summary of the fair value of available-for-sale investments (in millions): Amortized cost Fair value June 30, 2015 December 31, 2014 June 30, 2015 December 31, 2014 Bonds, notes and other securities: U.S. government and agencies $ 505 $ 759 $ 505 $ 759 Total short-term investments $ 505 $ 759 $ 505 $ 759 Asset-backed securities $ 40 $ 42 $ 35 $ 38 Total long-term investments $ 40 $ 42 $ 35 $ 38 We do not intend to sell, nor do we believe it is more likely than not that we would be required to sell, the long-term investment asset-backed securities (which are collateralized by mortgages) before recovery of their amortized cost basis. It is possible that a significant degradation in the delinquency or foreclosure rates in the underlying assets could cause further temporary or other-than-temporary impairments in the future. The following table summarizes the contractual maturities of available-for-sale securities at June 30, 2015 (in millions): Less than one year $505 Due in 1-5 years Due in 5-10 years Due after 10 years (1) 35 Total $540 (1) Includes $35 million of asset-based securities that mature over time and are being reported at their final maturity dates. Unrealized gains and losses, net of tax, are computed on a specific identification basis and are reported as a separate component of accumulated other comprehensive (loss) income in shareholders’ equity until realized. The following tables provide the fair value and gross unrealized losses of the Company’s investments aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2015 and December 31, 2014 (dollars in millions): June 30, 2015 12 months or greater Total Number of securities in a loss position Fair value Unrealized losses (1) Fair value Unrealized losses Asset-backed securities 21 $ 35 $ (4) $ 35 $ (4) Total long-term investments 21 $ 35 $ (4) $ 35 $ (4) (1) Unrealized losses in securities less than 12 months were not significant. December 31, 2014 12 months or greater Total Number of securities in a loss position Fair value Unrealized losses (1) Fair value Unrealized losses Asset-backed securities 21 $ 37 $ (4) $ 37 $ (4) Total long-term investments 21 $ 37 $ (4) $ 37 $ (4) (1) Unrealized losses in securities less than 12 months were not significant. As of June 30, 2015 and December 31, 2014, for securities that have credit losses, an other than temporary impairment loss of $4 million in both periods is recognized in accumulated other comprehensive (loss) income. For the six months ended June 30, 2015 and 2014, proceeds from sales and maturities of short-term investments totaled approximately $0.8 billion and $0.6 billion, respectively.

Note 7 - Inventories, Net of In

Note 7 - Inventories, Net of Inventory Reserves	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Inventory Disclosure [Text Block]	7. Inventories, Net of Inventory Reserves Inventories, net of inventory reserves comprise the following (in millions): June 30, 2015 December 31, 2014 Finished goods $ 585 $ 486 Work in process 267 255 Raw materials and accessories 245 302 Supplies and packing materials 288 279 Total inventories, net of inventory reserves $ 1,385 $ 1,322

Note 8 - Investments

Note 8 - Investments	6 Months Ended
	Jun. 30, 2015
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Joint Ventures Disclosure [Text Block]	8. Investments Dow Corning Corporation (“Dow Corning”) Dow Corning is a U.S.-based manufacturer of silicone products. Dow Corning’s results of operations follow (in millions): Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Statement of Operations: Net sales $ 1,424 $ 1,501 $ 2,788 $ 3,025 Gross profit (1) $ 364 $ 349 $ 722 $ 720 Net income attributable to Dow Corning $ 113 $ 109 $ 298 $ 300 Corning’s equity in earnings of Dow Corning $ 57 $ 54 $ 149 $ 146 (1) Gross profit for the three and six months ended June 30, 2015 includes research and development costs of $63 million and $125 million (2014: $70 million and $137 million). Dow Corning’s net income in the three and six months ended June 30, 2015 included a pre-tax gain of $29 million from the settlement of an intellectual property dispute and a pre-tax loss of $21 million and $48 million, respectively, on a derivative instrument. Additionally, in the first quarter of 2015, Dow Corning recorded a pre-tax gain of $178 million on the settlement of long-term sales agreements. Dow Corning’s net income in the three and six months ended June 30, 2014 includes a pre-tax gain of $25 million and $114 million, respectively, on a derivative instrument, and in the six months ending June 30, 2014 includes a pre-tax gain of $32 million on the settlement of long-term sales agreements.

Note 9 - Acquisitions

Note 9 - Acquisitions	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	9. Acquisitions Corning completed four acquisitions during the first quarter of 2015. During the second quarter of 2015 minor adjustments were made to the preliminary allocation of the total purchase consideration related to working capital adjustments and true-up of the fair value of assets acquired for the four acquisitions. Corning has not completed its accounting for the acquisitions; therefore, amounts are subject to change. A summary of the preliminary allocation of the total purchase consideration for the four acquisitions is as follows (in millions): Cash and cash equivalents $ 2 Trade receivables 49 Inventory 28 Property, plant and equipment 37 Other intangible assets 242 Other current and non-current assets 22 Current and non-current liabilities (59) Total identified net assets 321 Purchase consideration (534) Goodwill (1) $ 213 (1) The goodwill was allocated to the Optical Communications segment. The total consideration related to the acquisitions primarily consisted of cash and, in two of the acquisitions, contingent consideration. The contingent consideration arrangements may require additional amounts to be paid in 2016 and 2017 based on projections of future revenues. The combined potential additional consideration is capped at $28 million. The total fair value of the contingent consideration for the two acquisitions was fair valued at $13 million as of the acquisition date and had no changes as of June 30, 2015. The goodwill generated from these acquisitions is primarily related to the value of the product portfolio and customer/distribution networks acquired, combined with Corning’s existing business segments, as well as market participant synergies and other intangibles that do not qualify for separate recognition. The goodwill is partially deductible for income tax purposes. The acquired amortizable intangible assets have a weighted-average useful life of approximately 10 years. Acquisition-related costs of $9 million included in selling, general and administrative expense in the Consolidated Statements of Income for the six months ended June 30, 2015 included costs for legal, accounting, valuation and other professional services. The Consolidated Financial Statements include the operating results of each business combination from the date of acquisition. Pro forma results of operations have not been presented because the effects of the acquisitions, individually and in the aggregate, were not material to Corning’s financial results.

Note 10 - Property, Plant and E

Note 10 - Property, Plant and Equipment, Net of Accumulated Depreciation	6 Months Ended
	Jun. 30, 2015
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment Disclosure [Text Block]	10. Property, Plant and Equipment, Net of Accumulated Depreciation Property, plant and equipment, net of accumulated depreciation follows (in millions): June 30, 2015 December 31, 2014 Land $ 449 $ 458 Buildings 5,470 5,470 Equipment 14,218 13,848 Construction in progress 1,316 1,322 21,453 21,098 Accumulated depreciation (8,784) (8,332) Total $ 12,669 $ 12,766 In the three months ended June 30, 2015 and 2014, interest costs capitalized as part of Property, plant and equipment, net of accumulated depreciation, were $10 million and $11 million, respectively. In the six months ended June 30, 2015 and 2014, interest costs capitalized as part of Property, plant and equipment, net of accumulated depreciation, were $21 million and $22 million, respectively. Manufacturing equipment includes certain components of production equipment that are constructed of precious metals. At June 30, 2015 and December 31, 2014, the recorded value of precious metals totaled $3.0 billion and $3.1 billion, respectively. Depletion expense for precious metals in the three months ended June 30, 2015 and 2014 totaled $5 million in both periods. Depletion expense for precious metals in the six months ended June 30, 2015 and 2014 totaled $12 million and $13 million, respectively.

Note 11 - Goodwill and Other In

Note 11 - Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	11. Goodwill and Other Intangible Assets The carrying amount of goodwill by segment for the periods ended June 30, 2015 and December 31, 2014 is as follows (in millions): Optical Communications Display Technologies Specialty Materials Life Sciences Total Balance at December 31, 2014 $ 238 $ 134 $ 198 $ 580 $ 1,150 Acquired goodwill (1) 220 220 Measurement period adjustments (7) (7) Foreign currency translation adjustment (1) (2) (4) (13) (20) Balance at June 30, 2015 $ 450 $ 132 $ 194 $ 567 $ 1,343 (1) The Company completed several acquisitions in the Optical Communications segment during the first half of 2015. Refer to Note 9 (Acquisitions) to the Consolidated Financial Statements for additional information on these acquisitions. Corning’s gross goodwill balances for the periods ended June 30, 2015 and December 31, 2014 were $7.8 billion and $7.6 billion, respectively. Accumulated impairment losses were $6.5 billion for the periods ended June 30, 2015 and December 31, 2014, and were generated entirely through goodwill impairments related to the Optical Communications segment recorded primarily in 2001. Other intangible assets are as follows (in millions): June 30, 2015 December 31, 2014 Gross Accumulated amortization Net Gross Accumulated amortization Net Amortized intangible assets: Patents, trademarks, and trade names $ 358 $ 155 $ 203 $ 302 $ 149 $ 153 Customer lists and other 584 87 497 411 67 344 Total $ 942 $ 242 $ 700 $ 713 $ 216 $ 497 Corning’s amortized intangible assets are primarily related to the Optical Communications and Life Sciences segments. The net carrying amount of intangible assets increased during the first six months of 2015, primarily due to acquisitions of $242 million in other intangible assets offset by amortization of $28 million and foreign currency translation adjustments of $11 million. Amortization expense related to these intangible assets is estimated to be $57 million for 2015, $56 million annually from 2016 to 2019, and $51 million for 2020.

Note 12 - Employee Retirement P

Note 12 - Employee Retirement Plans	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	12. Employee Retirement Plans The following table summarizes the components of net periodic benefit cost for Corning’s defined benefit pension and postretirement health care and life insurance plans (in millions): Pension benefits Postretirement benefits Three months ended June 30, Six months ended June 30, Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 2015 2014 2015 2014 Service cost $ 22 $ 16 $ 45 $ 32 $ 4 $ 2 $ 7 $ 5 Interest cost 37 38 73 76 8 9 16 18 Expected return on plan assets (44) (43) (89) (86) Amortization of net loss 1 2 Amortization of prior service cost (credit) 1 1 3 3 (2) (1) (3) (2) Recognition of actuarial loss 8 8 Total pension and postretirement benefit expense $ 24 $ 12 $ 40 $ 25 $ 11 $ 10 $ 22 $ 21

Note 13 - Hedging Activities

Note 13 - Hedging Activities	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	13. Hedging Activities Undesignated Hedges The table below includes a total gross notional value for the foreign currency hedges related to translated earnings of $13.2 billion at June 30, 2015 (at December 31, 2014: $12.1 billion), including purchased and zero-cost collars of $5.3 billion (at December 31, 2014: $2.3 billion) and average rate forwards of $7.9 billion (at December 31, 2014: $9.8 billion). With respect to the purchased and zero-cost collars, the gross notional amount includes the value of both the put and call options. However, due to the nature of the purchased and zero-cost collars, either the put or the call option can be exercised at maturity. As of June 30, 2015, the total net notional value of the purchased and zero-cost collars was $2.8 billion (at December 31, 2014: $1.2 billion). The following tables summarize the notional amounts and respective fair values of Corning’s derivative financial instruments on a gross basis for June 30, 2015 and December 31, 2014 (in millions): U.S. Dollar Asset derivatives Liability derivatives Gross notional amount Balance sheet location Fair value Balance sheet location Fair value June 30, 2015 Dec. 31, 2014 June 30, 2015 Dec. 31, 2014 June 30, 2015 Dec. 31, 2014 Derivatives designated as hedging instruments Foreign exchange contracts $ 674 $ 487 Other current assets $ 31 $ 22 Other accrued liabilities $ (5) $ (6) Other assets 9 Other liabilities (1) Interest rate contracts 550 1,300 Other assets 1 Other liabilities (8) (15) Derivatives not designated as hedging instruments Foreign exchange contracts, other 444 1,285 Other current assets 2 17 Other accrued liabilities (4) (5) Foreign currency hedges related to translated earnings 13,236 12,126 Other current assets 636 649 Other accrued liabilities (29) (33) Other assets 763 846 Other liabilities (38) Total derivatives $14,904 $15,198 $1,441 $1,535 $(85) $(59) The following tables summarize the effect of derivative financial instruments on Corning’s consolidated financial statements for the three months ended June 30, 2015 and 2014 (in millions): Effect of derivative instruments on the consolidated financial statements for the three months ended June 30 Derivatives in hedging relationships Gain/(loss) recognized in other comprehensive income (OCI) Location of gain/(loss) reclassified from accumulated OCI into income (effective) Gain reclassified from accumulated OCI into income (effective) (1) 2015 2014 2015 2014 Interest rate hedges $ 6 Sales $5 Foreign exchange contracts 7 $2 Cost of sales 4 Total cash flow hedges $13 $2 $9 (1) The amount of hedge ineffectiveness at June 30, 2015 and 2014 was insignificant. The following tables summarize the effect of derivative financial instruments on Corning’s consolidated financial statements for the six months ended June 30, 2015 and 2014 (in millions): Effect of derivative instruments on the consolidated financial statements for the six months ended June 30 Derivatives in hedging relationships Gain/(loss) recognized in other comprehensive income (OCI) Location of gain/(loss) reclassified from accumulated OCI into income (effective) Gain reclassified from accumulated OCI into income (effective) (1) 2015 2014 2015 2014 Interest rate hedges $ (7) Sales $10 Foreign exchange contracts 34 $(5) Cost of sales 6 Total cash flow hedges $ 27 $(5) $16 (1) The amount of hedge ineffectiveness at June 30, 2015 and 2014 was insignificant. The following table summarizes the effect on the consolidated financial statements relating to Corning’s derivative financial instruments (in millions): Undesignated derivatives Location of gain/(loss) recognized in income Gain (loss) recognized in income Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Foreign exchange contracts – balance sheet Foreign currency hedge gain (loss), net $ 2 $ 7 $ 13 $ (5) Foreign exchange contracts – loans Foreign currency hedge gain (loss), net (3) 2 1 Foreign currency hedges related to translated earnings Foreign currency hedge gain (loss), net 162 (141) 191 (139) Total undesignated $ 164 $ (137) $ 206 $ (143)

Note 14 - Fair Value Measuremen

Note 14 - Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	14. Fair Value Measurements Fair value standards under U.S. GAAP define fair value, establish a framework for measuring fair value in applying generally accepted accounting principles, and require disclosures about fair value measurements. The standards also identify two kinds of inputs that are used to determine the fair value of assets and liabilities: observable and unobservable. Observable inputs are based on market data or independent sources while unobservable inputs are based on the Company’s own market assumptions. Once inputs have been characterized, the inputs are prioritized into one of three broad levels (provided in the table below) used to measure fair value. Fair value standards apply whenever an entity is measuring fair value under other accounting pronouncements that require or permit fair value measurement and require the use of observable market data when available. The following tables provide fair value measurement information for the Company’s major categories of financial assets and liabilities measured on a recurring basis (in millions): Fair value measurements at reporting date using June 30, 2015 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Current assets: Short-term investments $ 505 $ 505 Other current assets (1) $ 669 $ 669 Non-current assets: Other assets (1)(2) $ 1,265 $ 807 $ 458 Current liabilities: Other accrued liabilities (1)(3) $ 41 $ 38 $ 3 Non-current liabilities: Other liabilities (1)(3) $ 57 $ 47 $ 10 (1) Derivative assets and liabilities include foreign exchange forward and purchased collar contracts, and interest rate swaps which are measured using observable quoted prices for similar assets and liabilities. (2) Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets which are measured by applying an option pricing model using projected future revenue. (3) Other accrued liabilities and other liabilities include Level 3 contingent consideration payables which are measured by applying an option pricing model using projected future revenues. Fair value measurements at reporting date using December 31, 2014 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Current assets: Short-term investments $ 759 $ 759 Other current assets (1) $ 687 $ 687 Non-current assets: Other assets (1)(2) $ 1,330 $ 885 $ 445 Current liabilities: Other accrued liabilities (1) $ 44 $ 44 Non-current liabilities: Other liabilities (1) $ 15 $ 15 (1) Derivative assets and liabilities include foreign exchange forward and purchased collar contracts, and interest rate swaps which are measured using observable quoted prices for similar assets and liabilities. (2) Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets which are measured by applying an option pricing model using projected future revenue. As a result of the acquisition of Samsung Corning Precision Materials in January 2014, the Company has contingent consideration that was measured using unobservable (Level 3) inputs. Changes in the fair value of the contingent consideration in future periods are valued using an option pricing model and are recorded in Corning’s results in the period of the change. As of June 30, 2015 and December 31, 2014, the fair value of the potential receipt of the contingent consideration in 2018 was $458 million and $445 million, respectively. As a result of the acquisitions of iBwave Solutions Inc. and the fiber-optics business of Samsung Electronics Co., Ltd., the Company has contingent consideration that was measured using unobservable (Level 3) inputs. As of June 30, 2015, the fair value of the contingent consideration payable is $13 million. There were no significant financial assets and liabilities measured on a nonrecurring basis during the six months ended June 30, 2015.

Note 15 - Shareholders' Equity

Note 15 - Shareholders' Equity	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	15. Shareholders’ Equity Fixed Rate Cumulative Convertible Preferred Stock, Series A On January 15, 2014, Corning designated a new series of its preferred stock as Fixed Rate Cumulative Convertible Preferred Stock, Series A, par value $100 per share, and issued 2,300 shares of Preferred Stock at an issue price of $1 million per share, for an aggregate issue price of $2.3 billion. The Preferred Stock is convertible at the option of the holder and the Company upon certain events, at a conversion rate of 50,000 shares of Corning’s common stock per one share of Preferred Stock, subject to certain anti-dilution provisions. As of June 30, 2015, the Preferred Stock has not been converted, and none of the anti-dilution provisions have been triggered. Share Repurchases During the three and six months ended June 30, 2015, we repurchased 29.4 million and 50.5 million shares of common stock for $626 million and $1,128 million, respectively, as part of a $1.5 billion share repurchase program announced on December 3, 2014. Accumulated Other Comprehensive Income In the three and six months ended June 30, 2015 and 2014, the primary changes in accumulated other comprehensive income (“AOCI”) were related to the foreign currency translation component. A summary of changes in the foreign currency translation adjustment component of AOCI is as follows (in millions): Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Beginning balance $ (837) $ 360 $ (581) $ 492 Other comprehensive (loss) income (62) 262 (236) 287 Equity method affiliates 22 7 (60) (150) Net current-period other comprehensive income (40) 269 (296) 137 Ending balance $ (877) $ 629 $ (877) $ 629 In the first quarter of 2014, a $136 million cumulative foreign currency translation gain was released to income as a result of the step acquisition of Corning Precision Materials and included in the gain on previously held equity investment. There were no material tax effects related to foreign currency translation gains and losses.

Note 16 - Share-based Compensat

Note 16 - Share-based Compensation	6 Months Ended
	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	16. Share-based Compensation Stock Compensation Plans The Company measures and recognizes compensation cost for all share-based payment awards made to employees and directors based on estimated fair values. Fair values for stock options were estimated using a multiple-point Black-Scholes valuation model. Share-based compensation cost was approximately $15 million and $13 million for the three months ended June 30, 2015 and 2014, respectively, and approximately $25 million and $28 million for the six months ended June 30, 2015 and 2014, respectively. Amounts for all periods presented included compensation expense for employee stock options and time-based restricted stock and restricted stock units. Stock Options Corning’s stock option plans provide non-qualified and incentive stock options to purchase authorized but unissued shares, or treasury shares, at the market price on the grant date and generally become exercisable in installments from one to five years from the grant date. The maximum term of non-qualified and incentive stock options is 10 years from the grant date. The following table summarizes information concerning stock options outstanding including the related transactions under the stock option plans for the six months ended June 30, 2015: Number of Shares (in thousands) Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term in Years Aggregate Intrinsic Value (in thousands) Options Outstanding as of December 31, 2014 48,724 $18.94 Granted 1,572 21.49 Exercised (5,994) 16.36 Forfeited and Expired (135) 17.10 Options Outstanding as of June 30, 2015 44,167 19.39 4.37 $134,198 Options Expected to Vest as of June 30, 2015 44,103 19.39 4.36 134,060 Options Exercisable as of June 30, 2015 36,560 19.85 3.52 105,383 The aggregate intrinsic value (market value of stock less option exercise price) in the preceding table represents the total pretax intrinsic value, based on the Company’s closing stock price on June 30, 2015, which would have been received by the option holders had all option holders exercised their “in-the-money” options as of that date. As of June 30, 2015, there was approximately $10 million of unrecognized compensation cost related to stock options granted under the plans. The cost is expected to be recognized over a weighted-average period of 2.0 years. Compensation cost related to stock options was approximately $7 million and $5 million for the three months ended June 30, 2015 and 2014, respectively, and approximately $11 million for each of the six month periods ended June 30, 2015 and 2014. Proceeds received from the exercise of stock options were $98 million and $84 million for the six months ended June 30, 2015 and 2014, respectively. Proceeds received from the exercise of stock options were included in financing activities on the Company’s Consolidated Statements of Cash Flows. The total intrinsic value of options exercised for the six months ended June 30, 2015 and 2014 was approximately $46 million and $51 million, respectively. The income tax benefit realized from share-based compensation was not significant for the three and six months ended June 30, 2015. There was an immaterial amount of income tax benefits realized from share-based compensation for the three and six months ended June 30, 2014 due to net credit carryforwards available to the Company. Refer to Note 4 (Income Taxes) to the consolidated financial statements. The following inputs were used for the valuation of option grants under our stock option plans: Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Expected volatility 44.5 - 44.5% 45.8 - 45.8% 44.5 - 44.9% 45.8 - 46.2% Weighted-average volatility 44.5 - 44.5% 45.8 - 45.8% 44.5 - 44.9% 45.8 - 46.2% Expected dividends 2.24 - 2.24% 1.90 - 1.90% 1.92 - 2.24% 1.90 - 2.09% Risk-free rate 1.9 - 1.9% 2.2 - 2.2% 1.9 - 1.9% 2.2 - 2.2% Average risk-free rate 1.9 - 1.9% 2.2 - 2.2% 1.9 - 1.9% 2.2 - 2.2% Expected term (in years) 7.2 - 7.2 7.2 - 7.2 7.2 - 7.2 7.2 - 7.2 Pre-vesting departure rate 0.6 - 0.6% 0.5 - 0.5% 0.6 - 0.6% 0.5 - 0.5% Expected volatility is based on a blended approach defined as the weighted average of the short-term implied volatility, the most recent volatility for the period equal to the expected term, and the most recent 15-year historical volatility. The expected term assumption is the period of time the options are expected to be outstanding, and is calculated using a combination of historical exercise experience adjusted to reflect the current vesting period of options being valued, and partial life cycles of outstanding options. The risk-free rate assumption is the implied rate for a zero-coupon U.S. Treasury bond with a term equal to the option’s expected term. The ranges in the table above reflect results from separate groups of employees exhibiting different exercise behavior. Incentive Stock Plans The Corning Incentive Stock Plan permits restricted stock and restricted stock unit grants, either determined by specific performance goals or issued directly, in most instances, subject to the possibility of forfeiture and without cash consideration. Restricted stock and restricted stock units under the Incentive Stock Plan are granted at the closing market price on the grant date, contingently vest over a period of generally one to ten years, and generally have contractual lives of one to ten years. The fair value of each restricted stock grant or restricted stock unit awarded under the Incentive Stock Plan is based on the grant date closing price of the Company’s stock. Time-Based Restricted Stock and Restricted Stock Units: Time-based restricted stock and restricted stock units are issued by the Company on a discretionary basis, and are payable in shares of the Company’s common stock upon vesting. The fair value is based on the closing market price of the Company’s stock on the grant date. Compensation cost is recognized over the requisite vesting period and adjusted for actual forfeitures before vesting. The following table represents a summary of the status of the Company’s non-vested time-based restricted stock and restricted stock units as of December 31, 2014, and changes which occurred during the six months ended June 30, 2015: Shares (000’s) Weighted Average Grant-Date Fair Value Non-vested shares and share units at December 31, 2014 5,737 $ 15.43 Granted 1,329 22.60 Vested (1,656) 13.73 Forfeited (9) 22.68 Non-vested shares and share units at June 30, 2015 5,401 $ 17.70 As of June 30, 2015, there was approximately $37 million of unrecognized compensation cost related to non-vested time-based restricted stock and restricted stock units compensation arrangements granted under the Plan. The cost is expected to be recognized over a weighted-average period of 1.8 years. Compensation cost related to time-based restricted stock and restricted stock units was approximately $8 million for each of the three month periods ended June 30, 2015 and 2014, and approximately $14 million and $17 million for the six months ended June 30, 2015 and 2014, respectively.

Note 17 - Significant Customers

Note 17 - Significant Customers	6 Months Ended
	Jun. 30, 2015
Risks and Uncertainties [Abstract]
Concentration Risk Disclosure [Text Block]	17. Significant Customers Corning had one customer that individually accounted for 11% of the Company’s consolidated net sales in the three and six months ended June 30, 2015. For the three and six months ended June 30, 2014, Corning had one customer that individually accounted for 14% of the Company’s consolidated net sales.

Note 18 - Reportable Segments

Note 18 - Reportable Segments	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	18. Reportable Segments Our reportable segments are as follows: · Display Technologies – manufactures glass substrates for flat panel liquid crystal displays. · Optical Communications – manufactures carrier network and enterprise network components for the telecommunications industry. · Environmental Technologies – manufactures ceramic substrates and filters for automotive and diesel applications. · Specialty Materials – manufactures products that provide more than 150 material formulations for glass, glass ceramics and fluoride crystals to meet demand for unique customer needs. · Life Sciences – manufactures glass and plastic labware, equipment, media and reagents to provide workflow solutions for scientific applications. All other reportable segments that do not meet the quantitative threshold for separate reporting have been grouped as “All Other.” This group is primarily comprised of the results of Corning Precision Materials’ non-LCD business and new product lines and development projects that involve the use of various technologies for new products such as advanced flow reactors and adjacency businesses in pursuit of thin, strong glass. We prepared the financial results for our reportable segments on a basis that is consistent with the manner in which we internally disaggregate financial information to assist in making internal operating decisions. We included the earnings of equity affiliates that are closely associated with our reportable segments in the respective segment’s net income. We have allocated certain common expenses among reportable segments differently than we would for stand-alone financial information. Segment net income may not be consistent with measures used by other companies. The accounting policies of our reportable segments are the same as those applied in the consolidated financial statements. Reportable Segments Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Three months ended June 30, 2015 Net sales $ 789 $ 800 $ 260 $ 272 $ 211 $ 11 $ 2,343 Depreciation (1) $ 152 $ 43 $ 32 $ 27 $ 15 $ 11 $ 280 Amortization of purchased intangibles $ 11 $ 5 $ 16 Research, development and engineering expenses (2) $ 26 $ 35 $ 23 $ 29 $ 6 $ 44 $ 163 Restructuring, impairment and other charges $ 3 $ 3 Equity in earnings of affiliated companies $ (3) $ 6 $ 3 Income tax (provision) benefit $ (136) $ (37) $ (22) $ (22) $ (9) $ 21 $ (205) Net income (loss) (3) $ 303 $ 77 $ 46 $ 44 $ 18 $ (45) $ 443 Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Three months ended June 30, 2014 Net sales $ 987 $ 686 $ 285 $ 298 $ 223 $ 3 $ 2,482 Depreciation (1) $ 171 $ 37 $ 30 $ 29 $ 16 $ 7 $ 290 Amortization of purchased intangibles $ 2 $ 6 $ 8 Research, development and engineering expenses (2) $ 41 $ 34 $ 21 $ 34 $ 5 $ 48 $ 183 Restructuring, impairment and other charges $ 24 $ 10 $ 34 Equity in earnings of affiliated companies $ (4) $ 1 $ 7 $ 4 Income tax (provision) benefit $ (119) $ (31) $ (23) $ (21) $ (9) $ 22 $ (181) Net income (loss) (3) $ 282 $ 61 $ 47 $ 39 $ 18 $ (59) $ 388 Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Six months ended June 30, 2015 Net sales $ 1,597 $ 1,497 $ 542 $ 544 $ 408 $ 20 $ 4,608 Depreciation (1) $ 308 $ 81 $ 61 $ 53 $ 30 $ 20 $ 553 Amortization of purchased intangibles $ 17 $ 10 $ 27 Research, development and engineering expenses (2) $ 50 $ 68 $ 46 $ 60 $ 11 $ 89 $ 324 Restructuring, impairment and other charges $ (1) $ 3 $ 2 Equity in earnings of affiliated companies $ (5) $ 8 $ 3 Income tax (provision) benefit $ (268) $ (66) $ (45) $ (43) $ (17) $ 44 $ (395) Net income (loss) (3) $ 597 $ 134 $ 94 $ 82 $ 34 $ (93) $ 848 Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Six months ended June 30, 2014 Net sales $ 1,916 $ 1,279 $ 560 $ 559 $ 433 $ 24 $ 4,771 Depreciation (1) $ 344 $ 73 $ 60 $ 56 $ 31 $ 12 $ 576 Amortization of purchased intangibles $ 4 $ 12 $ 16 Research, development and engineering expenses (2) $ 86 $ 71 $ 42 $ 67 $ 10 $ 76 $ 352 Restructuring, impairment and other charges $ 29 $ 12 $ 10 $ 51 Equity in earnings of affiliated companies $ (13) $ 2 $ 9 $ (2) Income tax (provision) benefit $ (317) $ (50) $ (44) $ (37) $ (17) $ 38 $ (427) Net income (loss) (3) $ 491 $ 88 $ 90 $ 70 $ 35 $ (99) $ 675 (1) Depreciation expense for Corning’s reportable segments includes an allocation of depreciation of corporate property not specifically identifiable to a segment. (2) Research, development and engineering expenses include direct project spending that is identifiable to a segment. (3) Many of Corning’s administrative and staff functions are performed on a centralized basis. Where practicable, Corning charges these expenses to segments based upon the extent to which each business uses a centralized function. Other staff functions, such as corporate finance, human resources and legal, are allocated to segments, primarily as a percentage of sales. A reconciliation of reportable segment net income to consolidated net income follows (in millions): Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Net income of reportable segments $ 488 $ 447 $ 941 $ 774 Non-reportable segments (45) (59) (93) (99) Unallocated amounts: Net financing costs (1) (25) (30) (49) (59) Stock-based compensation expense (15) (13) (25) (28) Exploratory research (28) (24) (54) (51) Corporate contributions (12) (11) (24) (16) Equity in earnings of affiliated companies, net of impairments (2) 59 59 153 151 Asbestos settlement (2) (4) (3) (6) Unrealized loss on foreign currency hedges related to translated earnings (7) (119) (82) (149) Other corporate items 83 (77) 139 (47) Net income $ 496 $ 169 $ 903 $ 470 (1) Net financing costs include interest income, interest expense, and interest costs and investment gains associated with benefit plans. (2) Primarily represents the equity earnings of Dow Corning. (3) Other corporate items include the tax impact of the unallocated amounts, excluding foreign currency hedges related to translated earnings. The sales of each of our reportable segments are concentrated across a relatively small number of customers. In the three months ended June 30, 2015, the following number of customers, which individually accounted for 10% or more of each segment’s sales, represented the following concentration of segment sales: · In the Display Technologies segment, three customers accounted for 61% of total segment sales. · In the Optical Communications segment, two customers accounted for 22% of total segment sales. · In the Environmental Technologies segment, three customers accounted for 87% of total segment sales. · In the Specialty Materials segment, three customers accounted for 53% of total segment sales. · In the Life Sciences segment, two customers accounted for 48% of total segment sales. In the six months ended June 30, 2015, the following number of customers, which individually accounted for 10% or more of each segment’s sales, represented the following concentration of segment sales: · In the Display Technologies segment, three customers accounted for 61% of total segment sales. · In the Optical Communications segment, one customer accounted for 11% of total segment sales. · In the Environmental Technologies segment, three customers accounted for 86% of total segment sales. · In the Specialty Materials segment, three customers accounted for 56% of total segment sales. · In the Life Sciences segment, two customers accounted for 46% of total segment sales.

Accounting Policies, by Policy

Accounting Policies, by Policy (Policies)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Basis of Presentation In these notes, the terms “Corning,” “Company,” “we,” “us” or “our” mean Corning Incorporated and subsidiary companies. The accompanying unaudited consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) for interim financial information. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been omitted or condensed. These interim consolidated financial statements should be read in conjunction with Corning’s consolidated financial statements and notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 Form 10-K”). The unaudited consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary for a fair statement of the results of operations, financial position and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. The results for interim periods are not necessarily indicative of results which may be expected for any other interim period or for the full year. Certain prior year amounts have been reclassified to conform to the current-year presentation. These reclassifications had no impact on our results of operations, financial position, or changes in shareholders’ equity.
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Standards In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. (“ASU”) 2014-09, Revenue from Contracts with Customers, as a new Topic, Accounting Standards Codification (“ASC”) Topic 606. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU is effective for annual periods beginning after December 15, 2016, including interim periods within that reporting period, and shall be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. In July 2015, the FASB approved a one-year deferral of the effective date of ASU 2014-09, Revenue from Contracts with Customers. We can elect to adopt the provisions of ASU 2014-09 for annual periods beginning after December 15, 2017, including interim periods within that reporting period. The FASB also agreed to allow entities to choose to adopt the standard as of the original effective date.

Note 4 - Income Taxes (Tables)

Note 4 - Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Schedule of Income Tax Provisions and Rates [Table Text Block]	Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Provision for income taxes $ (110) $ (172) $ (196) $ (352) Effective tax rate 18.2% 50.4% 17.8% 42.8%

Note 5 - Earnings Per Common 28

Note 5 - Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Net income attributable to Corning Incorporated $ 496 $ 169 $ 903 $ 470 Less: Series A convertible preferred stock dividend 24 24 49 45 Net income available to common stockholders - basic 472 145 854 425 Plus: Series A convertible preferred stock dividend 24 49 Net income available to common stockholders - diluted $ 496 $ 145 $ 903 $ 425 Weighted-average common shares outstanding - basic 1,246 1,302 1,257 1,331 Effect of dilutive securities: Stock options and other dilutive securities 10 13 11 12 Series A convertible preferred stock 115 115 Weighted-average common shares outstanding - diluted 1,371 1,315 1,383 1,343 Basic earnings per common share $ 0.38 $ 0.11 $ 0.68 $ 0.32 Diluted earnings per common share $ 0.36 $ 0.11 $ 0.65 $ 0.32 Antidilutive potential shares excluded from diluted earnings per common share: Series A convertible preferred stock 115 106 Employee stock options and awards 20 20 17 24 Accelerated share repurchase forward contract 6 Total 20 135 17 136

Note 6 - Available-for-Sale I29

Note 6 - Available-for-Sale Investments (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Amortized cost Fair value June 30, 2015 December 31, 2014 June 30, 2015 December 31, 2014 Bonds, notes and other securities: U.S. government and agencies $ 505 $ 759 $ 505 $ 759 Total short-term investments $ 505 $ 759 $ 505 $ 759 Asset-backed securities $ 40 $ 42 $ 35 $ 38 Total long-term investments $ 40 $ 42 $ 35 $ 38
Investments Classified by Contractual Maturity Date [Table Text Block]	Less than one year $505 Due in 1-5 years Due in 5-10 years Due after 10 years (1) 35 Total $540
Schedule of Unrealized Loss on Investments [Table Text Block]	June 30, 2015 12 months or greater Total Number of securities in a loss position Fair value Unrealized losses (1) Fair value Unrealized losses Asset-backed securities 21 $ 35 $ (4) $ 35 $ (4) Total long-term investments 21 $ 35 $ (4) $ 35 $ (4) December 31, 2014 12 months or greater Total Number of securities in a loss position Fair value Unrealized losses (1) Fair value Unrealized losses Asset-backed securities 21 $ 37 $ (4) $ 37 $ (4) Total long-term investments 21 $ 37 $ (4) $ 37 $ (4)

Note 7 - Inventories, Net of 30

Note 7 - Inventories, Net of Inventory Reserves (Tables)	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	June 30, 2015 December 31, 2014 Finished goods $ 585 $ 486 Work in process 267 255 Raw materials and accessories 245 302 Supplies and packing materials 288 279 Total inventories, net of inventory reserves $ 1,385 $ 1,322

Note 8 - Investments (Tables)

Note 8 - Investments (Tables)	6 Months Ended
	Jun. 30, 2015
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Affiliate Result of Operations [Table Text Block]	Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Statement of Operations: Net sales $ 1,424 $ 1,501 $ 2,788 $ 3,025 Gross profit (1) $ 364 $ 349 $ 722 $ 720 Net income attributable to Dow Corning $ 113 $ 109 $ 298 $ 300 Corning’s equity in earnings of Dow Corning $ 57 $ 54 $ 149 $ 146

Note 9 - Acquisitions (Tables)

Note 9 - Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Cash and cash equivalents $ 2 Trade receivables 49 Inventory 28 Property, plant and equipment 37 Other intangible assets 242 Other current and non-current assets 22 Current and non-current liabilities (59) Total identified net assets 321 Purchase consideration (534) Goodwill (1) $ 213

Note 10 - Property, Plant and33

Note 10 - Property, Plant and Equipment, Net of Accumulated Depreciation (Tables)	6 Months Ended
	Jun. 30, 2015
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Table Text Block]	June 30, 2015 December 31, 2014 Land $ 449 $ 458 Buildings 5,470 5,470 Equipment 14,218 13,848 Construction in progress 1,316 1,322 21,453 21,098 Accumulated depreciation (8,784) (8,332) Total $ 12,669 $ 12,766

Note 11 - Goodwill and Other 34

Note 11 - Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	Optical Communications Display Technologies Specialty Materials Life Sciences Total Balance at December 31, 2014 $ 238 $ 134 $ 198 $ 580 $ 1,150 Acquired goodwill (1) 220 220 Measurement period adjustments (7) (7) Foreign currency translation adjustment (1) (2) (4) (13) (20) Balance at June 30, 2015 $ 450 $ 132 $ 194 $ 567 $ 1,343
Schedule of Finite-Lived Intangible Assets [Table Text Block]	June 30, 2015 December 31, 2014 Gross Accumulated amortization Net Gross Accumulated amortization Net Amortized intangible assets: Patents, trademarks, and trade names $ 358 $ 155 $ 203 $ 302 $ 149 $ 153 Customer lists and other 584 87 497 411 67 344 Total $ 942 $ 242 $ 700 $ 713 $ 216 $ 497

Note 12 - Employee Retirement35

Note 12 - Employee Retirement Plans (Tables)	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	Pension benefits Postretirement benefits Three months ended June 30, Six months ended June 30, Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 2015 2014 2015 2014 Service cost $ 22 $ 16 $ 45 $ 32 $ 4 $ 2 $ 7 $ 5 Interest cost 37 38 73 76 8 9 16 18 Expected return on plan assets (44) (43) (89) (86) Amortization of net loss 1 2 Amortization of prior service cost (credit) 1 1 3 3 (2) (1) (3) (2) Recognition of actuarial loss 8 8 Total pension and postretirement benefit expense $ 24 $ 12 $ 40 $ 25 $ 11 $ 10 $ 22 $ 21

Note 13 - Hedging Activities (T

Note 13 - Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2015
Note 13 - Hedging Activities (Tables) [Line Items]
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	U.S. Dollar Asset derivatives Liability derivatives Gross notional amount Balance sheet location Fair value Balance sheet location Fair value June 30, 2015 Dec. 31, 2014 June 30, 2015 Dec. 31, 2014 June 30, 2015 Dec. 31, 2014 Derivatives designated as hedging instruments Foreign exchange contracts $ 674 $ 487 Other current assets $ 31 $ 22 Other accrued liabilities $ (5) $ (6) Other assets 9 Other liabilities (1) Interest rate contracts 550 1,300 Other assets 1 Other liabilities (8) (15) Derivatives not designated as hedging instruments Foreign exchange contracts, other 444 1,285 Other current assets 2 17 Other accrued liabilities (4) (5) Foreign currency hedges related to translated earnings 13,236 12,126 Other current assets 636 649 Other accrued liabilities (29) (33) Other assets 763 846 Other liabilities (38) Total derivatives $14,904 $15,198 $1,441 $1,535 $(85) $(59)
Designated as Hedging Instrument [Member]
Note 13 - Hedging Activities (Tables) [Line Items]
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]	Effect of derivative instruments on the consolidated financial statements for the three months ended June 30 Derivatives in hedging relationships Gain/(loss) recognized in other comprehensive income (OCI) Location of gain/(loss) reclassified from accumulated OCI into income (effective) Gain reclassified from accumulated OCI into income (effective) (1) 2015 2014 2015 2014 Interest rate hedges $ 6 Sales $5 Foreign exchange contracts 7 $2 Cost of sales 4 Total cash flow hedges $13 $2 $9 Effect of derivative instruments on the consolidated financial statements for the six months ended June 30 Derivatives in hedging relationships Gain/(loss) recognized in other comprehensive income (OCI) Location of gain/(loss) reclassified from accumulated OCI into income (effective) Gain reclassified from accumulated OCI into income (effective) (1) 2015 2014 2015 2014 Interest rate hedges $ (7) Sales $10 Foreign exchange contracts 34 $(5) Cost of sales 6 Total cash flow hedges $ 27 $(5) $16
Not Designated as Hedging Instrument [Member]
Note 13 - Hedging Activities (Tables) [Line Items]
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]	Undesignated derivatives Location of gain/(loss) recognized in income Gain (loss) recognized in income Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Foreign exchange contracts – balance sheet Foreign currency hedge gain (loss), net $ 2 $ 7 $ 13 $ (5) Foreign exchange contracts – loans Foreign currency hedge gain (loss), net (3) 2 1 Foreign currency hedges related to translated earnings Foreign currency hedge gain (loss), net 162 (141) 191 (139) Total undesignated $ 164 $ (137) $ 206 $ (143)

Note 14 - Fair Value Measurem37

Note 14 - Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair value measurements at reporting date using June 30, 2015 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Current assets: Short-term investments $ 505 $ 505 Other current assets (1) $ 669 $ 669 Non-current assets: Other assets (1)(2) $ 1,265 $ 807 $ 458 Current liabilities: Other accrued liabilities (1)(3) $ 41 $ 38 $ 3 Non-current liabilities: Other liabilities (1)(3) $ 57 $ 47 $ 10 Fair value measurements at reporting date using December 31, 2014 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Current assets: Short-term investments $ 759 $ 759 Other current assets (1) $ 687 $ 687 Non-current assets: Other assets (1)(2) $ 1,330 $ 885 $ 445 Current liabilities: Other accrued liabilities (1) $ 44 $ 44 Non-current liabilities: Other liabilities (1) $ 15 $ 15

Note 15 - Shareholders' Equity

Note 15 - Shareholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
Comprehensive Income (Loss) [Table Text Block]	Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Beginning balance $ (837) $ 360 $ (581) $ 492 Other comprehensive (loss) income (62) 262 (236) 287 Equity method affiliates 22 7 (60) (150) Net current-period other comprehensive income (40) 269 (296) 137 Ending balance $ (877) $ 629 $ (877) $ 629

Note 16 - Share-based Compens39

Note 16 - Share-based Compensation (Tables)	6 Months Ended
	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Number of Shares (in thousands) Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term in Years Aggregate Intrinsic Value (in thousands) Options Outstanding as of December 31, 2014 48,724 $18.94 Granted 1,572 21.49 Exercised (5,994) 16.36 Forfeited and Expired (135) 17.10 Options Outstanding as of June 30, 2015 44,167 19.39 4.37 $134,198 Options Expected to Vest as of June 30, 2015 44,103 19.39 4.36 134,060 Options Exercisable as of June 30, 2015 36,560 19.85 3.52 105,383
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Expected volatility 44.5 - 44.5% 45.8 - 45.8% 44.5 - 44.9% 45.8 - 46.2% Weighted-average volatility 44.5 - 44.5% 45.8 - 45.8% 44.5 - 44.9% 45.8 - 46.2% Expected dividends 2.24 - 2.24% 1.90 - 1.90% 1.92 - 2.24% 1.90 - 2.09% Risk-free rate 1.9 - 1.9% 2.2 - 2.2% 1.9 - 1.9% 2.2 - 2.2% Average risk-free rate 1.9 - 1.9% 2.2 - 2.2% 1.9 - 1.9% 2.2 - 2.2% Expected term (in years) 7.2 - 7.2 7.2 - 7.2 7.2 - 7.2 7.2 - 7.2 Pre-vesting departure rate 0.6 - 0.6% 0.5 - 0.5% 0.6 - 0.6% 0.5 - 0.5%
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	Shares (000’s) Weighted Average Grant-Date Fair Value Non-vested shares and share units at December 31, 2014 5,737 $ 15.43 Granted 1,329 22.60 Vested (1,656) 13.73 Forfeited (9) 22.68 Non-vested shares and share units at June 30, 2015 5,401 $ 17.70

Note 18 - Reportable Segments (

Note 18 - Reportable Segments (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Three months ended June 30, 2015 Net sales $ 789 $ 800 $ 260 $ 272 $ 211 $ 11 $ 2,343 Depreciation (1) $ 152 $ 43 $ 32 $ 27 $ 15 $ 11 $ 280 Amortization of purchased intangibles $ 11 $ 5 $ 16 Research, development and engineering expenses (2) $ 26 $ 35 $ 23 $ 29 $ 6 $ 44 $ 163 Restructuring, impairment and other charges $ 3 $ 3 Equity in earnings of affiliated companies $ (3) $ 6 $ 3 Income tax (provision) benefit $ (136) $ (37) $ (22) $ (22) $ (9) $ 21 $ (205) Net income (loss) (3) $ 303 $ 77 $ 46 $ 44 $ 18 $ (45) $ 443 Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Three months ended June 30, 2014 Net sales $ 987 $ 686 $ 285 $ 298 $ 223 $ 3 $ 2,482 Depreciation (1) $ 171 $ 37 $ 30 $ 29 $ 16 $ 7 $ 290 Amortization of purchased intangibles $ 2 $ 6 $ 8 Research, development and engineering expenses (2) $ 41 $ 34 $ 21 $ 34 $ 5 $ 48 $ 183 Restructuring, impairment and other charges $ 24 $ 10 $ 34 Equity in earnings of affiliated companies $ (4) $ 1 $ 7 $ 4 Income tax (provision) benefit $ (119) $ (31) $ (23) $ (21) $ (9) $ 22 $ (181) Net income (loss) (3) $ 282 $ 61 $ 47 $ 39 $ 18 $ (59) $ 388 Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Six months ended June 30, 2015 Net sales $ 1,597 $ 1,497 $ 542 $ 544 $ 408 $ 20 $ 4,608 Depreciation (1) $ 308 $ 81 $ 61 $ 53 $ 30 $ 20 $ 553 Amortization of purchased intangibles $ 17 $ 10 $ 27 Research, development and engineering expenses (2) $ 50 $ 68 $ 46 $ 60 $ 11 $ 89 $ 324 Restructuring, impairment and other charges $ (1) $ 3 $ 2 Equity in earnings of affiliated companies $ (5) $ 8 $ 3 Income tax (provision) benefit $ (268) $ (66) $ (45) $ (43) $ (17) $ 44 $ (395) Net income (loss) (3) $ 597 $ 134 $ 94 $ 82 $ 34 $ (93) $ 848 Display Technologies Optical Communications Environmental Technologies Specialty Materials Life Sciences All Other Total Six months ended June 30, 2014 Net sales $ 1,916 $ 1,279 $ 560 $ 559 $ 433 $ 24 $ 4,771 Depreciation (1) $ 344 $ 73 $ 60 $ 56 $ 31 $ 12 $ 576 Amortization of purchased intangibles $ 4 $ 12 $ 16 Research, development and engineering expenses (2) $ 86 $ 71 $ 42 $ 67 $ 10 $ 76 $ 352 Restructuring, impairment and other charges $ 29 $ 12 $ 10 $ 51 Equity in earnings of affiliated companies $ (13) $ 2 $ 9 $ (2) Income tax (provision) benefit $ (317) $ (50) $ (44) $ (37) $ (17) $ 38 $ (427) Net income (loss) (3) $ 491 $ 88 $ 90 $ 70 $ 35 $ (99) $ 675
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Three months ended June 30, Six months ended June 30, 2015 2014 2015 2014 Net income of reportable segments $ 488 $ 447 $ 941 $ 774 Non-reportable segments (45) (59) (93) (99) Unallocated amounts: Net financing costs (1) (25) (30) (49) (59) Stock-based compensation expense (15) (13) (25) (28) Exploratory research (28) (24) (54) (51) Corporate contributions (12) (11) (24) (16) Equity in earnings of affiliated companies, net of impairments (2) 59 59 153 151 Asbestos settlement (2) (4) (3) (6) Unrealized loss on foreign currency hedges related to translated earnings (7) (119) (82) (149) Other corporate items 83 (77) 139 (47) Net income $ 496 $ 169 $ 903 $ 470

Supplemental Cash Flow Inform41

Supplemental Cash Flow Information (Details) - Samsung Corning Precision Materials Co., Ltd. [Member] - Convertible Preferred Stock, Series A [Member] - USD ($) $ in Millions	Jan. 15, 2014	Mar. 31, 2014
Supplemental Cash Flow Information (Details) [Line Items]
Stock Issued During Period, Shares, Acquisitions	2,300	1,900
Additional Amount Issued at Closing [Member]
Supplemental Cash Flow Information (Details) [Line Items]
Stock Issued During Period, Shares, New Issues		400
Stock Issued During Period, Value, New Issues (in Dollars)		$ 400

Note 2 - Commitments, Conting42

Note 2 - Commitments, Contingencies, and Guarantees (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)	Nov. 12, 2013USD ($)	Apr. 16, 2000USD ($)
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Recorded Unconditional Purchase Obligation	$ 311		$ 311		$ 287
Number of Hazardous Waste Sites	15		15
Contingent Guarantees [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 174		$ 174		150
Pittsburgh Corning Corporation (PCC) [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Equity Method Investments							$ 0
Pittsburgh Corning Europe (PCE) [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Equity Method Investments, Fair Value Disclosure	$ 245		$ 245		241
Equity Method Investments	151		151		162
Environmental Cleanup And Related Litigation [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Accrual for Environmental Loss Contingencies	$ 41		$ 41		43
PPG Industries, Inc. [Member] | Pittsburgh Corning Corporation (PCC) [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Asbestos Litigation [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Asbestos Settlement (Credit) Charge	$ 2	$ 4	$ 3	$ 6
Asbestos Litigation [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						$ 290
Asbestos Litigation [Member] | First Payment [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						70
Asbestos Litigation [Member] | First Subsequent Anniversary [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						35
Asbestos Litigation [Member] | Second Subsequent Anniversary [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						50
Asbestos Litigation [Member] | Third Subsequent Anniversary [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						35
Asbestos Litigation [Member] | Fourth Subsequent Anniversary [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						50
Asbestos Litigation [Member] | Fifth Subsequent Anniversary [Member] | Amended Pittsburgh Corning Corporation Plan [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Required Payments Per Reorganization Plan						$ 50
Asbestos Litigation [Member] | Pittsburgh Corning Corporation (PCC) [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Pending Claims, Number							11,800
Non-PCC Asbestos Litigation [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Number of Other Cases Currently Involved Alleging Injuries from Asbestos and Similar Amounts of Monetary Damages Per Case			9,700
Number of Claims in Other Cases Currently Involved Alleging Injuries from Asbestos and Similar Amounts of Monetary Damages Per Case			37,300
Insurance Recoveries			$ 19
Loss Contingency Accrual, Period Increase (Decrease)			$ 150
Undiscounted Projection of Claims and Related Legal Fees, Period			20 years
Amended PCC Plan and Non-PCC Asbestos Claims [Member]
Note 2 - Commitments, Contingencies, and Guarantees (Details) [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 685		$ 685		$ 681

Note 3 - Debt (Details)

Note 3 - Debt (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Note 3 - Debt (Details) [Line Items]
Debt Instrument, Fair Value Disclosure	$ 4,200	$ 4,200	$ 3,600
Long-term Debt and Capital Lease Obligations	3,910	3,910	$ 3,227
Proceeds from Issuance of Unsecured Debt		745
Senior Notes [Member]
Note 3 - Debt (Details) [Line Items]
Proceeds from Issuance of Unsecured Debt	745
1.50% Due May 8, 2018 [Member] | Senior Notes [Member]
Note 3 - Debt (Details) [Line Items]
Debt Instrument, Face Amount	$ 375	$ 375
Debt Instrument, Interest Rate, Stated Percentage	1.50%	1.50%
2.90% Due May 15, 2022 [Member] | Senior Notes [Member]
Note 3 - Debt (Details) [Line Items]
Debt Instrument, Face Amount	$ 375	$ 375
Debt Instrument, Interest Rate, Stated Percentage	2.90%	2.90%

Note 4 - Income Taxes (Details)

Note 4 - Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 4 - Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Tax Holiday, Percent	0.40%	1.40%	0.40%	1.30%
Low Or No Tax Cost [Member]
Note 4 - Income Taxes (Details) [Line Items]
Undistributed Earnings of Foreign Subsidiaries (in Dollars)	$ 6		$ 6
Korean Withholding Tax [Member]
Note 4 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment for Equity Investment Dividend (in Dollars)				$ 102
Foreign Tax Authority [Member]
Note 4 - Income Taxes (Details) [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (in Dollars)		$ 135		$ 146

Note 4 - Income Taxes (Detail45

Note 4 - Income Taxes (Details) - Provision for Income Taxes - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Provision for Income Taxes [Abstract]
Provision for income taxes	$ (110)	$ (172)	$ (196)	$ (352)
Effective tax rate	18.20%	50.40%	17.80%	42.80%

Note 5 - Earnings Per Common 46

Note 5 - Earnings Per Common Share (Details) - Computation of Basic and Diluted Earnings per Common Share - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 5 - Earnings Per Common Share (Details) - Computation of Basic and Diluted Earnings per Common Share [Line Items]
Net income attributable to Corning Incorporated (in Dollars)	$ 496	$ 169	$ 903	$ 470
Net income available to common stockholders - basic (in Dollars)	472	145	854	425
Net income available to common stockholders - diluted (in Dollars)	$ 496	$ 145	$ 903	$ 425
Weighted-average common shares outstanding - basic	1,246	1,302	1,257	1,331
Effect of dilutive securities:
Weighted-average common shares outstanding - diluted	1,371	1,315	1,383	1,343
Basic earnings per common share (in Dollars per share)	$ 0.38	$ 0.11	$ 0.68	$ 0.32
Diluted earnings per common share (in Dollars per share)	$ 0.36	$ 0.11	$ 0.65	$ 0.32
Antidilutive potential shares excluded from diluted earnings per common share:
Anti-dilutive potential shares excluded from diluted earnings per common share	20	135	17	136
Convertible Preferred Stock, Series A [Member]
Antidilutive potential shares excluded from diluted earnings per common share:
Anti-dilutive potential shares excluded from diluted earnings per common share		115		106
Stock Compensation Plan [Member]
Antidilutive potential shares excluded from diluted earnings per common share:
Anti-dilutive potential shares excluded from diluted earnings per common share	20	20	17	24
Forward Contracts [Member]
Antidilutive potential shares excluded from diluted earnings per common share:
Anti-dilutive potential shares excluded from diluted earnings per common share				6
Convertible Preferred Stock, Series A [Member]
Note 5 - Earnings Per Common Share (Details) - Computation of Basic and Diluted Earnings per Common Share [Line Items]
Less: Series A convertible preferred stock dividend (in Dollars)	$ 24	$ 24	$ 49	$ 45
Plus: Series A convertible preferred stock dividend (in Dollars)	$ 24	$ 24	$ 49	$ 45
Effect of dilutive securities:
Effect of dilutive securities	115		115
Stock Options and Other Dilutive Securities [Member]
Effect of dilutive securities:
Effect of dilutive securities	10	13	11	12

Note 6 - Available-for-Sale I47

Note 6 - Available-for-Sale Investments (Details) - USD ($) $ in Millions		6 Months Ended		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	[1]	$ 35
Marketable Securities, Realized Loss, Other than Temporary Impairments, Amount		4		$ 4
Proceeds from Sale of Short-term Investments		$ 825	$ 574
[1]	Includes $35 million of asset-based securities that mature over time and are being reported at their final maturity dates.

Note 6 - Available-for-Sale I48

Note 6 - Available-for-Sale Investments (Details) - Summary of Fair Value of Available-for-Sale Investments - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
US Government Agencies Debt Securities [Member]
Bonds, notes and other securities:
Amortized cost	$ 505	$ 759
Fair value	505	759
Total Short-Term Investments [Member]
Bonds, notes and other securities:
Amortized cost	505	759
Fair value	505	759
Asset-backed Securities [Member]
Bonds, notes and other securities:
Amortized cost	40	42
Fair value	35	38
Total Long-Term Investments [Member]
Bonds, notes and other securities:
Amortized cost	40	42
Fair value	$ 35	$ 38

Note 6 - Available-for-Sale I49

Note 6 - Available-for-Sale Investments (Details) - Summary of Maturities of Available-for-Sale Securities $ in Millions		Jun. 30, 2015USD ($)
Summary of Maturities of Available-for-Sale Securities [Abstract]
Less than one year		$ 505
Due in 5-10 years
Due after 10 years (1)	[1]	35
Total		$ 540
[1]	Includes $35 million of asset-based securities that mature over time and are being reported at their final maturity dates.

Note 6 - Available-for-Sale I50

Note 6 - Available-for-Sale Investments (Details) - Fair Value and Gross Unrealized Losses of Investments by Length of Time in Continuous Unrealized Loss Position $ in Millions		Jun. 30, 2015USD ($)	Dec. 31, 2014USD ($)
Fair Value and Gross Unrealized Losses of Investments by Length of Time in Continuous Unrealized Loss Position [Abstract]
Number of Securities in A Loss Position		21	21
12 months or Greater, Fair Value		$ 35	$ 37
12 months or Greater, Unrealized Losses	[1]	(4)	(4)
Total, Fair Value		35	37
Total, Unrealized Losses		$ (4)	$ (4)
[1]	Unrealized losses in securities less than 12 months were not significant.

Note 7 - Inventories, Net of 51

Note 7 - Inventories, Net of Inventory Reserves (Details) - Inventories, Net - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Inventories, Net [Abstract]
Finished goods	$ 585	$ 486
Work in process	267	255
Raw materials and accessories	245	302
Supplies and packing materials	288	279
Total inventories, net of inventory reserves	$ 1,385	$ 1,322

Note 8 - Investments (Details)

Note 8 - Investments (Details) - Dow Corning Corporation [Member] - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 8 - Investments (Details) [Line Items]
Research and Development Expense	$ 63		$ 70	$ 125	$ 137
Litigation Settlement, Amount	29			29
Equity Method Investment, Summarized Financial Information, Derivative, Loss on Derivative	$ 21			$ 48
Gain (Loss) on Contract Termination		$ 178			32
Equity Method Investment, Summarized Financial Information, Derivative, Gain on Derivative			$ 25		$ 114

Note 8 - Investments (Details)

Note 8 - Investments (Details) - Results of Operations - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015	Jun. 30, 2014
Statement of Operations:
Corning’s equity in earnings of Dow Corning	$ 62		$ 62		$ 156	$ 148
Dow Corning Corporation [Member]
Statement of Operations:
Net sales	1,424		1,501		2,788	3,025
Gross profit (1)	364	[1]	349	[1]	722	720
Net income attributable to Dow Corning	113		109		298	300
Corning’s equity in earnings of Dow Corning	$ 57		$ 54		$ 149	$ 146
[1]	Gross profit for the three and six months ended June 30, 2015 includes research and development costs of $63 million and $125 million (2014: $70 million and $137 million).

Note 9 - Acquisitions (Details)

Note 9 - Acquisitions (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Jun. 30, 2015USD ($)
Note 9 - Acquisitions (Details) [Line Items]
Number of Businesses Acquired		4
Selling, General and Administrative Expenses [Member]
Note 9 - Acquisitions (Details) [Line Items]
Business Combination, Acquisition Related Costs			$ 9,000,000
IBwave Solutions and Fiberoptics [Member]
Note 9 - Acquisitions (Details) [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 28,000,000
Business Combination, Contingent Consideration, Liability	$ 13,000,000		$ 13,000,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 0
Patents, Trademarks, Trade Names, Customer Lists and Other [Member]
Note 9 - Acquisitions (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			10 years

Note 9 - Acquisitions (Detail55

Note 9 - Acquisitions (Details) - Recognized Amounts of Identified Assets Acquired and Liabilities Assumed - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Note 9 - Acquisitions (Details) - Recognized Amounts of Identified Assets Acquired and Liabilities Assumed [Line Items]
Goodwill (1)		$ 1,343	$ 1,150
Optical Communications [Member]
Note 9 - Acquisitions (Details) - Recognized Amounts of Identified Assets Acquired and Liabilities Assumed [Line Items]
Goodwill (1)		450	$ 238
Four Acquisitions [Member]
Note 9 - Acquisitions (Details) - Recognized Amounts of Identified Assets Acquired and Liabilities Assumed [Line Items]
Cash and cash equivalents		2
Trade receivables		49
Inventory		28
Property, plant and equipment		37
Other intangible assets		242
Other current and non-current assets		22
Current and non-current liabilities		(59)
Total identified net assets		321
Purchase consideration		(534)
Four Acquisitions [Member] | Optical Communications [Member]
Note 9 - Acquisitions (Details) - Recognized Amounts of Identified Assets Acquired and Liabilities Assumed [Line Items]
Goodwill (1)	[1]	$ 213
[1]	The goodwill was allocated to the Optical Communications segment.

Note 10 - Property, Plant and56

Note 10 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Interest Costs Capitalized	$ 10	$ 11	$ 21	$ 22
Precious Metals	3,000		3,000		$ 3,100
Depletion	$ 5	$ 5	$ 12	$ 13

Note 10 - Property, Plant and57

Note 10 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - Property, Net - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,453	$ 21,098
Accumulated depreciation	(8,784)	(8,332)
Total	12,669	12,766
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	449	458
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,470	5,470
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	14,218	13,848
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,316	$ 1,322

Note 11 - Goodwill and Other 58

Note 11 - Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Note 11 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill, Gross	$ 7,800		$ 7,800		$ 7,600
Finite-lived Intangible Assets Acquired			242
Amortization of Intangible Assets	16	$ 8	28	$ 16
Finite-Lived Intangible Assets, Translation Adjustments			11
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	57		57
Finite-Lived Intangible Assets, Amortization Expense, Year Two	56		56
Finite-Lived Intangible Assets, Amortization Expense, Year Three	56		56
Finite-Lived Intangible Assets, Amortization Expense, Year Four	56		56
Finite-Lived Intangible Assets, Amortization Expense, Year Five	56		56
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	51		51
Optical Communications [Member]
Note 11 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	$ 6,500		$ 6,500		$ 6,500

Note 11 - Goodwill and Other 59

Note 11 - Goodwill and Other Intangible Assets (Details) - Carrying Amount of Goodwill by Segment $ in Millions		6 Months Ended
		Jun. 30, 2015USD ($)
Goodwill [Line Items]
Balance		$ 1,150
Acquired goodwill (1)	[1]	220
Measurement period adjustments		(7)
Foreign currency translation adjustment		(20)
Balance		1,343
Optical Communications [Member]
Goodwill [Line Items]
Balance		238
Acquired goodwill (1)	[1]	220
Measurement period adjustments		(7)
Foreign currency translation adjustment		(1)
Balance		450
Display Technologies [Member]
Goodwill [Line Items]
Balance		134
Foreign currency translation adjustment		(2)
Balance		132
Specialty Materials [Member]
Goodwill [Line Items]
Balance		198
Foreign currency translation adjustment		(4)
Balance		194
Life Sciences [Member]
Goodwill [Line Items]
Balance		580
Foreign currency translation adjustment		(13)
Balance		$ 567
[1]	The Company completed several acquisitions in the Optical Communications segment during the first half of 2015. Refer to Note 9 (Acquisitions) to the Consolidated Financial Statements for additional information on these acquisitions.

Note 11 - Goodwill and Other 60

Note 11 - Goodwill and Other Intangible Assets (Details) - Other Intangible Assets - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Amortized intangible assets:
Other intangible assets, gross	$ 942	$ 713
Other intangible assets, accumulated amortization	242	216
Other intangible assets, net	700	497
Patents, Trademarks, and Trade Names [Member]
Amortized intangible assets:
Other intangible assets, gross	358	302
Other intangible assets, accumulated amortization	155	149
Other intangible assets, net	203	153
Customer Lists and Other [Member]
Amortized intangible assets:
Other intangible assets, gross	584	411
Other intangible assets, accumulated amortization	87	67
Other intangible assets, net	$ 497	$ 344

Note 12 - Employee Retirement61

Note 12 - Employee Retirement Plans (Details) - Summary of Net Periodic Benefit Cost - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Pension Plan [Member]
Note 12 - Employee Retirement Plans (Details) - Summary of Net Periodic Benefit Cost [Line Items]
Service cost	$ 22	$ 16	$ 45	$ 32
Interest cost	37	38	73	76
Expected return on plan assets	(44)	(43)	(89)	(86)
Amortization of prior service cost (credit)	1	1	3	3
Recognition of actuarial loss	8		8
Total pension and postretirement benefit expense	24	12	40	25
Other Postretirement Benefit Plan [Member]
Note 12 - Employee Retirement Plans (Details) - Summary of Net Periodic Benefit Cost [Line Items]
Service cost	4	2	7	5
Interest cost	8	9	16	18
Amortization of net loss	1		2
Amortization of prior service cost (credit)	(2)	(1)	(3)	(2)
Total pension and postretirement benefit expense	$ 11	$ 10	$ 22	$ 21

Note 13 - Hedging Activities (D

Note 13 - Hedging Activities (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Billions	Jun. 30, 2015	Dec. 31, 2014
Gross Notional Value [Member] | Translated Earnings Contracts [Member]
Note 13 - Hedging Activities (Details) [Line Items]
Derivative, Notional Amount	$ 13.2	$ 12.1
Gross Notional Value [Member] | Collar Options [Member]
Note 13 - Hedging Activities (Details) [Line Items]
Derivative, Notional Amount	5.3	2.3
Gross Notional Value [Member] | Foreign Exchange Forward [Member]
Note 13 - Hedging Activities (Details) [Line Items]
Derivative, Notional Amount	7.9	9.8
Net Notional Value [Member] | Collar Options [Member]
Note 13 - Hedging Activities (Details) [Line Items]
Derivative, Notional Amount	$ 2.8	$ 1.2

Note 13 - Hedging Activities 63

Note 13 - Hedging Activities (Details) - Summary of Notional Amounts and Respective Fair Values of Derivative Financial Instruments - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Derivatives designated as hedging instruments
Notional amount	$ 14,904	$ 15,198
Asset derivatives, fair value	1,441	1,535
Liability derivatives, fair value	(85)	(59)
Designated as Hedging Instrument [Member]
Derivatives designated as hedging instruments
Asset derivatives, fair value	9
Liability derivatives, fair value	(1)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives designated as hedging instruments
Notional amount	674	487
Asset derivatives, fair value	31	22
Liability derivatives, fair value	(5)	(6)
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives designated as hedging instruments
Notional amount	550	1,300
Asset derivatives, fair value		1
Liability derivatives, fair value	(8)	(15)
Not Designated as Hedging Instrument [Member]
Derivatives designated as hedging instruments
Asset derivatives, fair value	763	846
Liability derivatives, fair value	(38)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives designated as hedging instruments
Notional amount	444	1,285
Asset derivatives, fair value	2	17
Liability derivatives, fair value	(4)	(5)
Not Designated as Hedging Instrument [Member] | Translated Earnings Contracts [Member]
Derivatives designated as hedging instruments
Notional amount	13,236	12,126
Asset derivatives, fair value	636	649
Liability derivatives, fair value	$ (29)	$ (33)

Note 13 - Hedging Activities 64

Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements - Cash Flow Hedging [Member] - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)		$ 13	$ 2	$ 27	$ (5)
Gain reclassified from accumulated OCI into income (effective)	[1]	9		16
Sales [Member] | Interest Rate Hedges [Member]
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)		6		(7)
Gain reclassified from accumulated OCI into income (effective)	[1]	5		10
Cost of Sales [Member] | Foreign Exchange Contract [Member]
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)		7	$ 2	34	$ (5)
Gain reclassified from accumulated OCI into income (effective)	[1]	$ 4		$ 6
[1]	The amount of hedge ineffectiveness at June 30, 2015 and 2014 was insignificant.

Note 13 - Hedging Activities 65

Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income			$ 191	$ (139)
Undesignated [Member]
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	$ 164	$ (137)	206	(143)
Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] | Foreign Exchange Contracts, Balance Sheet [Member]
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	2	7	13	(5)
Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] | Foreign Exchange Contracts, Loans [Member]
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income		(3)	2	1
Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] | Translated Earnings Contracts [Member]
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	$ 162	$ (141)	$ 191	$ (139)

Note 14 - Fair Value Measurem66

Note 14 - Fair Value Measurements (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Note 14 - Fair Value Measurements (Details) [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 0
Liabilities, Fair Value Disclosure, Nonrecurring	0
Samsung Corning Precision Materials Co., Ltd. [Member]
Note 14 - Fair Value Measurements (Details) [Line Items]
Business Combination, Contingent Consideration, Asset	458,000,000	$ 445,000,000
IBwave Solutions and Fiberoptics [Member]
Note 14 - Fair Value Measurements (Details) [Line Items]
Business Combination, Contingent Consideration, Liability	$ 13,000,000

Note 14 - Fair Value Measurem67

Note 14 - Fair Value Measurements (Details) - Major Categories of Financial Assets and Liabilities Measured on a Recurring Basis - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Non-current assets:
Other assets		$ 1,656	$ 1,722
Current liabilities:
Other accrued liabilities (1)(3)		990	1,291
Non-current liabilities:
Other liabilities (1)(3)		2,120	2,046
Current Assets [Member]
Current assets:
Short-term investments		505	759
Other current assets	[1]	669	687
Non Current Assets [Member]
Non-current assets:
Other assets	[1],[2]	1,265	1,330
Current Liabilities [Member]
Current liabilities:
Other liabilities	[1]		44
Current liabilities:
Other accrued liabilities (1)(3)	[1],[3]	41
Non Current Liabilities [Member]
Current liabilities:
Other liabilities	[1]		15
Non-current liabilities:
Other liabilities (1)(3)	[1],[3]	57
Fair Value, Inputs, Level 1 [Member] | Current Assets [Member]
Current assets:
Short-term investments		505	759
Fair Value, Inputs, Level 2 [Member] | Current Assets [Member]
Current assets:
Other current assets	[1]	669	687
Fair Value, Inputs, Level 2 [Member] | Non Current Assets [Member]
Non-current assets:
Other assets	[1],[2]	807	885
Fair Value, Inputs, Level 2 [Member] | Current Liabilities [Member]
Current liabilities:
Other liabilities	[1]		44
Current liabilities:
Other accrued liabilities (1)(3)	[1],[3]	38
Fair Value, Inputs, Level 2 [Member] | Non Current Liabilities [Member]
Current liabilities:
Other liabilities	[1]		15
Non-current liabilities:
Other liabilities (1)(3)	[1],[3]	47
Fair Value, Inputs, Level 3 [Member] | Non Current Assets [Member]
Non-current assets:
Other assets	[1],[2]	458	$ 445
Fair Value, Inputs, Level 3 [Member] | Current Liabilities [Member]
Current liabilities:
Other accrued liabilities (1)(3)	[1],[3]	3
Fair Value, Inputs, Level 3 [Member] | Non Current Liabilities [Member]
Non-current liabilities:
Other liabilities (1)(3)	[1],[3]	$ 10
[1]	Derivative assets and liabilities include foreign exchange forward and purchased collar contracts, and interest rate swaps which are measured using observable quoted prices for similar assets and liabilities.
[2]	Other assets include asset-backed securities which are measured using observable quoted prices for similar assets and contingent consideration assets which are measured by applying an option pricing model using projected future revenue.
[3]	Other accrued liabilities and other liabilities include Level 3 contingent consideration payables which are measured by applying an option pricing model using projected future revenues.

Note 15 - Shareholders' Equit68

Note 15 - Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	Jan. 15, 2014	Jun. 30, 2015	Mar. 31, 2014	Jun. 30, 2015	Dec. 31, 2014	Dec. 03, 2014
Note 15 - Shareholders' Equity (Details) [Line Items]
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)		$ 100		$ 100	$ 100
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax			$ 136
Dec. 3, 2014 [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Treasury Stock, Shares, Acquired (in Shares)		29,400,000		50,500,000
Treasury Stock, Value, Acquired, Cost Method		$ 626		$ 1,128
Stock Repurchase Program, Authorized Amount						$ 1,500
Common Stock [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares)	50,000
Convertible Preferred Stock, Series A [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 100
Samsung Corning Precision Materials Co., Ltd. [Member] | Convertible Preferred Stock, Series A [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Stock Issued During Period, Shares, Acquisitions (in Shares)	2,300		1,900
Share Price (in Dollars per share)	$ 1,000,000
Stock Issued During Period, Value, Acquisitions	$ 2,300

Note 15 - Shareholders' Equit69

Note 15 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 15 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items]
Beginning balance			$ (1,307)
Ending balance	$ (1,591)		(1,591)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Note 15 - Shareholders' Equity (Details) - Accumulated Other Comprehensive Income [Line Items]
Beginning balance	(837)	$ 360	(581)	$ 492
Other comprehensive (loss) income	(62)	262	(236)	287
Equity method affiliates	22	7	(60)	(150)
Net current-period other comprehensive income	(40)	269	(296)	137
Ending balance	$ (877)	$ 629	$ (877)	$ 629

Note 16 - Share-based Compens70

Note 16 - Share-based Compensation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 16 - Share-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense	$ 15	$ 13	$ 25	$ 28
Proceeds from Stock Options Exercised			98	84
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value			$ 46	51
Years of Historical Volatility Included in Most Recent Volatility			15 years
Employee Stock Option [Member]
Note 16 - Share-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense	7	5	$ 11	11
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	10		$ 10
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years
Proceeds from Stock Options Exercised			$ 98	84
Restricted Stock [Member]
Note 16 - Share-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense	8	$ 8	14	$ 17
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 37		$ 37
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 292 days
Minimum [Member]
Note 16 - Share-based Compensation (Details) [Line Items]
Stock Options Exercisable Period from Date of Grant			1 year
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	7 years 73 days	7 years 73 days	7 years 73 days	7 years 73 days
Minimum [Member] | Restricted Stock [Member]
Note 16 - Share-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			1 year
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term			1 year
Maximum [Member]
Note 16 - Share-based Compensation (Details) [Line Items]
Stock Options Exercisable Period from Date of Grant			5 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	7 years 73 days	7 years 73 days	7 years 73 days	7 years 73 days
Maximum [Member] | Restricted Stock [Member]
Note 16 - Share-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			10 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term			10 years

Note 16 - Share-based Compens71

Note 16 - Share-based Compensation (Details) - Summary of Information Concerning Stock Options Outstanding Including the Related Transactions under the Stock Option Plans - Jun. 30, 2015 - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	Total
Summary of Information Concerning Stock Options Outstanding Including the Related Transactions under the Stock Option Plans [Abstract]
Options Outstanding as of December 31, 2014	48,724
Options Outstanding as of December 31, 2014	$ 18.94
Granted	1,572
Granted	$ 21.49
Exercised	(5,994)
Exercised	$ 16.36
Forfeited and Expired	(135)
Forfeited and Expired	$ 17.10
Options Outstanding as of June 30, 2015	44,167
Options Outstanding as of June 30, 2015	$ 19.39
Options Outstanding as of June 30, 2015	4 years 135 days
Options Outstanding as of June 30, 2015	$ 134,198
Options Expected to Vest as of June 30, 2015	44,103
Options Expected to Vest as of June 30, 2015	$ 19.39
Options Expected to Vest as of June 30, 2015	4 years 131 days
Options Expected to Vest as of June 30, 2015	$ 134,060
Options Exercisable as of June 30, 2015	36,560
Options Exercisable as of June 30, 2015	$ 19.85
Options Exercisable as of June 30, 2015	3 years 189 days
Options Exercisable as of June 30, 2015	$ 105,383

Note 16 - Share-based Compens72

Note 16 - Share-based Compensation (Details) - Inputs Used for Valuation of Option Grants under Stock Option Plans	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Minimum [Member]
Note 16 - Share-based Compensation (Details) - Inputs Used for Valuation of Option Grants under Stock Option Plans [Line Items]
Expected volatility	44.50%	45.80%	44.50%	45.80%
Weighted-average volatility	44.50%	45.80%	44.50%	45.80%
Expected dividends	2.24%	1.90%	1.92%	1.90%
Risk-free rate	1.90%	2.20%	1.90%	2.20%
Average risk-free rate	1.90%	2.20%	1.90%	2.20%
Expected term (in years)	7 years 73 days	7 years 73 days	7 years 73 days	7 years 73 days
Pre-vesting departure rate	0.60%	0.50%	0.60%	0.50%
Maximum [Member]
Note 16 - Share-based Compensation (Details) - Inputs Used for Valuation of Option Grants under Stock Option Plans [Line Items]
Expected volatility	44.50%	45.80%	44.90%	46.20%
Weighted-average volatility	44.50%	45.80%	44.90%	46.20%
Expected dividends	2.24%	1.90%	2.24%	2.09%
Risk-free rate	1.90%	2.20%	1.90%	2.20%
Average risk-free rate	1.90%	2.20%	1.90%	2.20%
Expected term (in years)	7 years 73 days	7 years 73 days	7 years 73 days	7 years 73 days
Pre-vesting departure rate	0.60%	0.50%	0.60%	0.50%

Note 16 - Share-based Compens73

Note 16 - Share-based Compensation (Details) - Summary of the Status of Non-Vested Time-Based Restricted Stock and Restricted Stock Units - 6 months ended Jun. 30, 2015 - Time-Based Restricted Stock and Restricted Stock Units [Member] - $ / shares shares in Thousands	Total
Note 16 - Share-based Compensation (Details) - Summary of the Status of Non-Vested Time-Based Restricted Stock and Restricted Stock Units [Line Items]
Non-vested shares and share units at December 31, 2014	5,737
Non-vested shares and share units at December 31, 2014	$ 15.43
Granted	1,329
Granted	$ 22.60
Vested	(1,656)
Vested	$ 13.73
Forfeited	(9)
Forfeited	$ 22.68
Non-vested shares and share units at June 30, 2015	5,401
Non-vested shares and share units at June 30, 2015	$ 17.70

Note 17 - Significant Custome74

Note 17 - Significant Customers (Details) - Customer Concentration Risk [Member] - Sales Revenue, Net [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 17 - Significant Customers (Details) [Line Items]
Number of Significant Customers	1	1	1	1
Concentration Risk, Percentage	11.00%	14.00%	11.00%	14.00%

Note 18 - Reportable Segments75

Note 18 - Reportable Segments (Details) - Jun. 30, 2015	Total	Total
Sales Revenue, Segment [Member] | Customer Concentration Risk [Member] | Display Technologies [Member]
Note 18 - Reportable Segments (Details) [Line Items]
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales	3	3
Concentration Risk, Percentage	61.00%	61.00%
Sales Revenue, Segment [Member] | Customer Concentration Risk [Member] | Optical Communications [Member]
Note 18 - Reportable Segments (Details) [Line Items]
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales	2	1
Concentration Risk, Percentage	22.00%	11.00%
Sales Revenue, Segment [Member] | Customer Concentration Risk [Member] | Environmental Technologies [Member]
Note 18 - Reportable Segments (Details) [Line Items]
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales	3	3
Concentration Risk, Percentage	87.00%	86.00%
Sales Revenue, Segment [Member] | Customer Concentration Risk [Member] | Specialty Materials [Member]
Note 18 - Reportable Segments (Details) [Line Items]
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales	3	3
Concentration Risk, Percentage	53.00%	56.00%
Sales Revenue, Segment [Member] | Customer Concentration Risk [Member] | Life Sciences [Member]
Note 18 - Reportable Segments (Details) [Line Items]
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales	2	2
Concentration Risk, Percentage	48.00%	46.00%
Minimum [Member]
Note 18 - Reportable Segments (Details) [Line Items]
Number of Material Formulations		150

Note 18 - Reportable Segments76

Note 18 - Reportable Segments (Details) - Reportable Segments - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Net sales		$ 2,343	$ 2,482	$ 4,608	$ 4,771
Depreciation				562	583
Amortization of purchased intangibles		16	8	28	16
Research, development and engineering expenses		191	208	380	406
Restructuring, impairment & other charges			34		51
Equity in earnings of affiliated companies		62	62	156	148
Income tax (provision) benefit		(110)	(172)	(196)	(352)
NetIncomeLoss		496	169	903	470
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		2,343	2,482	4,608	4,771
Depreciation	[1]	280	290	553	576
Amortization of purchased intangibles		16	8	27	16
Research, development and engineering expenses	[2]	163	183	324	352
Restructuring, impairment & other charges		3	34	2	51
Equity in earnings of affiliated companies		3	4	3	(2)
Income tax (provision) benefit		(205)	(181)	(395)	(427)
NetIncomeLoss	[3]	443	388	848	675
Display Technologies [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		789	987	1,597	1,916
Depreciation	[1]	152	171	308	344
Research, development and engineering expenses	[2]	26	41	50	86
Restructuring, impairment & other charges			24		29
Equity in earnings of affiliated companies		(3)	(4)	(5)	(13)
Income tax (provision) benefit		(136)	(119)	(268)	(317)
NetIncomeLoss	[3]	303	282	597	491
Optical Communications [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		800	686	1,497	1,279
Depreciation	[1]	43	37	81	73
Amortization of purchased intangibles		11	2	17	4
Research, development and engineering expenses	[2]	35	34	68	71
Restructuring, impairment & other charges				(1)	12
Income tax (provision) benefit		(37)	(31)	(66)	(50)
NetIncomeLoss	[3]	77	61	134	88
Environmental Technologies [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		260	285	542	560
Depreciation	[1]	32	30	61	60
Research, development and engineering expenses	[2]	23	21	46	42
Equity in earnings of affiliated companies			1		2
Income tax (provision) benefit		(22)	(23)	(45)	(44)
NetIncomeLoss	[3]	46	47	94	90
Specialty Materials [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		272	298	544	559
Depreciation	[1]	27	29	53	56
Research, development and engineering expenses	[2]	29	34	60	67
Restructuring, impairment & other charges		3		3
Income tax (provision) benefit		(22)	(21)	(43)	(37)
NetIncomeLoss	[3]	44	39	82	70
Life Sciences [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		211	223	408	433
Depreciation	[1]	15	16	30	31
Amortization of purchased intangibles		5	6	10	12
Research, development and engineering expenses	[2]	6	5	11	10
Income tax (provision) benefit		(9)	(9)	(17)	(17)
NetIncomeLoss	[3]	18	18	34	35
Other Segments [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales		11	3	20	24
Depreciation	[1]	11	7	20	12
Research, development and engineering expenses	[2]	44	48	89	76
Restructuring, impairment & other charges			10		10
Equity in earnings of affiliated companies		6	7	8	9
Income tax (provision) benefit		21	22	44	38
NetIncomeLoss	[3]	$ (45)	$ (59)	$ (93)	$ (99)
[1]	Depreciation expense for Corning's reportable segments includes an allocation of depreciation of corporate property not specifically identifiable to a segment.
[2]	Research, development and engineering expenses include direct project spending that is identifiable to a segment.
[3]	Many of Corning's administrative and staff functions are performed on a centralized basis. Where practicable, Corning charges these expenses to segments based upon the extent to which each business uses a centralized function. Other staff functions, such as corporate finance, human resources and legal, are allocated to segments, primarily as a percentage of sales.

Note 18 - Reportable Segments77

Note 18 - Reportable Segments (Details) - Reconciliation of Reportable Segment Net Income (Loss) to Consolidated Net Income - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income		$ 496	$ 169	$ 903	$ 470
Unallocated amounts:
Net financing costs (1)	[1]	(25)	(30)	(49)	(59)
Stock-based compensation expense		(15)	(13)	(25)	(28)
Exploratory research		(28)	(24)	(54)	(51)
Corporate contributions		(12)	(11)	(24)	(16)
Equity in earnings of affiliated companies, net of impairments (2)	[2]	59	59	153	151
Asbestos settlement		(2)	(4)	(3)	(6)
Unrealized loss on foreign currency hedges related to translated earnings		(7)	(119)	(82)	(149)
Other corporate items (3)	[3]	83	(77)	139	(47)
Reportable Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income		488	447	941	774
Non Reportable Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Income		$ (45)	$ (59)	$ (93)	$ (99)
[1]	Net financing costs include interest income, interest expense, and interest costs and investment gains associated with benefit plans.
[2]	Primarily represents the equity earnings of Dow Corning.
[3]	Other corporate items include the tax impact of the unallocated amounts, excluding foreign currency hedges related to translated earnings.